Focusable Elements - Browser Compatibility Table

The following tables show which elements individual browsers consider focusable or tabbable (keyboard focusable). The tables are based on the focusable test document.

Note that touch devices (without a physical keyboard) only show elements as tabbable (keyboard focusable), that can be navigated to through the on-screen keyboard (or "virtual keyboard").

Document Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<html> 2	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	focusable -1 E S	focusable -1 E S	tabbable 0	tabbable 0	tabbable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<body> 3	focusable -1	focusable -1 E S	focusable -1 E S	focusable 0 E S	focusable 0 E S	focusable 0 E S	focusable 0 E S	focusable -1 E S	focusable -1 E S	tabbable 0 E	tabbable 0	tabbable 0 E	focusable -1 E S	focusable -1 E S	focusable -1 E S	focusable -1 E S	focusable -1 E S	focusable -1 E S	focusable -1 E S

Form Control Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<button type="button">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<input type="checkbox">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<input type="password">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input type="radio">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<input type="submit">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<input type="text">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input type="reset">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<select>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<textarea>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0 E	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<button type="button" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input type="checkbox" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input type="password" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input type="radio" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input type="submit" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input type="text" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1 E	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input type="reset" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<select tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<textarea tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input type="text" tabindex="1">	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	focusable 1	tabbable 1
<input type="text" tabindex="2">	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	focusable 2	tabbable 2

Form Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<input> within <form>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<form tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<form tabindex="0">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<input> within <form tabindex="-1">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input> within <form tabindex="0">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<form disabled tabindex="-1"> 4	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	inert -1	inert -1	inert -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<form disabled tabindex="0"> 4	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<input> within <form disabled> 4	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input> within <form disabled tabindex="-1"> 4	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input> within <form disabled tabindex="0"> 4	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0

Fieldset Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<fieldset>	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0 E	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert 0
<fieldset disabled tabindex="-1">	inert -1	inert -1 5	inert -1 5	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	focusable -1	focusable -1 5	focusable -1	focusable -1 5	inert -1 5	focusable -1
<fieldset disabled tabindex="0">	inert 0	inert -1 5	inert -1 5	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert -1	tabbable 0	tabbable 0 5	tabbable 0	tabbable 0 5	inert -1 5	focusable 0
<legend> within <fieldset>	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T
<legend> within <fieldset> that only contains <input tabindex="-1">	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T
<legend> within <fieldset> that only contains <textarea>	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T
<legend> within <fieldset> that only contains <select>	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T
<legend> within <fieldset> that only contains <button>	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T
<legend> within <fieldset> that only contains <a>	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1

Label Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<label for="…"> with <input id="…"> 6	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0 7	inert 0 7	inert 0 7	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T
<label tabindex="-1" for="…"> with <input id="…"> 6	redirecting -1 T	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	redirecting -1 T	redirecting -1 T	focusable -1	focusable -1	focusable -1	focusable -1	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	focusable -1	redirecting -1 T
<label tabindex="-1"> 6	inert -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	inert -1	inert -1	focusable -1	focusable -1	focusable -1 E	focusable -1	inert -1	inert -1	inert -1	inert -1	focusable -1	inert -1
<label tabindex="0"> 6	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	only tabbable 0 E S	only tabbable 0 E S	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	inert 0	focusable 0	inert 0
<label> with nested <input> 6	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert 0	inert 0	inert 0	inert 0	redirecting -1 T	redirecting -1 T	inert 0 7	inert 0 7	inert 0 7	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T

Editable Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<div contenteditable>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable -1	tabbable -1	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<div contenteditable tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<span style="user-modify: read-write"> 8	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert -1	inert -1	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<span style="user-modify: read-write" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1

Tabindex Attribute

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<div tabindex="-2">	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2 E	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2	focusable -2
<div tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<div tabindex="0">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<div tabindex="1">	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	focusable 1	focusable 1
<div tabindex="+2">	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	focusable 2	focusable 2
<div tabindex=" +2">	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	tabbable 2	focusable 2	focusable 2
<div tabindex="3 "> 11	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	focusable 3	focusable 3
<div tabindex="3x"> 12	tabbable 3	tabbable 3	tabbable 3	inert 0	inert 0	inert 0	inert 0	tabbable 3	tabbable 3	inert 0	inert 0	inert 0	tabbable 3	tabbable 3	tabbable 3	tabbable 3	tabbable 3	focusable 3	focusable 3
<div tabindex=""> 9	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	focusable -1	focusable -1	inert 0 10	inert 0 10	inert 0 10	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<div tabindex="hello"> 9	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	focusable -1	focusable -1	inert 0	inert 0	inert 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<input tabindex="hello"> 9	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0 E	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0

Navigation Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<a href="">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1

Image Maps

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<img usemap="#…">	inert -1	inert -1	inert -1	redirecting 0 T	redirecting 0 T	redirecting 0 T	redirecting 0 T	inert -1	inert -1	redirecting 0 T	redirecting 0 T	redirecting 0 T	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<area href="…"> with <img usemap="#…">	tabbable 0	tabbable 0 R	tabbable 0 R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	tabbable 0 R 13	tabbable 0 R 13	tabbable 0 S R	tabbable 0 S R	tabbable 0 E S R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	focusable 0 R	focusable 0 R
<area> with <img usemap="#…">	inert 0	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	tabbable 0 R	tabbable 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R
<area href="…" tabindex="-1"> with <img usemap="#…">	focusable -1	inert -1 R	inert -1 R	focusable -1 S R	focusable -1 S R	focusable -1 S R	focusable -1 S R	focusable -1 R	focusable -1 R	focusable -1 S R	focusable -1 S R	focusable -1 S R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<area tabindex="-1"> with <img usemap="#…">	inert -1	inert -1 R	inert -1 R	focusable -1 S R	focusable -1 S R	focusable -1 S R	focusable -1 S R	focusable -1 R	focusable -1 R	focusable -1 S R	focusable -1 S R	focusable -1 E S R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<area href="…"> with <img usemap="#…"> with invalid image 15	tabbable 0	tabbable 0 R	tabbable 0 R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	inert 0 R	inert 0 R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	focusable 0 R	focusable 0 R
<area href="…"> with two <img usemap="#…">	tabbable 0	tabbable 0 R	tabbable 0 R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	tabbable 0 R	tabbable 0 R	tabbable 0 S R	tabbable 0 S R	tabbable 0 S R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	focusable 0 R	focusable 0 R
<img usemap="#…" tabindex="-1">	focusable -1	focusable -1	focusable -1	redirecting -1 T	redirecting -1 T	redirecting -1 T	redirecting -1 T	inert -1	inert -1	redirecting -1 T	redirecting -1 T	redirecting -1 T	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<area href="…"> with <img usemap="#…" tabindex="-1">	tabbable 0	tabbable 0 R	tabbable 0 R	focusable 0 S R	focusable 0 S R	focusable 0 S R	focusable 0 S R	tabbable 0 R	tabbable 0 R	focusable 0 S R	focusable 0 S R	focusable 0 S R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	focusable 0 R	focusable 0 R
<area> with <img usemap="#…" tabindex="-1">	inert 0	inert 0 R	inert 0 R	focusable 0 S R	focusable 0 S R	focusable 0 S R	focusable 0 S R	tabbable 0 R 14	tabbable 0 R 14	focusable 0 S R	focusable 0 S R	focusable 0 S R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R
<input> between <img usemap="#map"> and <img usemap="#map"> 51	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0 50	focusable 0 50	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<area> child of <map name="#…"> with <object type="image/png" usemap="#…">	inert 0	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable 0 R	focusable 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R
<area href="…"> with <object type="image/png" usemap="#…" >	inert 0	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable 0 R	focusable 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R

Media Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<audio> 16	inert -1	inert -1	inert -1	focusable 0	focusable 0	focusable 0	focusable 0	inert 0	inert 0	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<audio controls>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<audio controls tabindex="-1">	focusable -1	tabbable -1	tabbable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	tabbable -1	focusable -1	focusable -1	focusable -1	tabbable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<video> 17	inert -1	inert -1	inert -1	focusable 0	focusable 0	focusable 0	focusable 0	tabbable 0	tabbable 0	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<video controls>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<video controls tabindex="-1">	focusable -1	tabbable -1	tabbable -1	focusable -1	focusable -1	focusable -1	focusable -1	tabbable -1	tabbable -1	focusable -1	focusable -1	focusable -1	tabbable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1

Shadow DOM

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
::shadow 18 19	inert -1	inert host -1 C	inert host -1 C	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	inert 0	inert 0	inert 0	inert host -1 C	inert -1	inert -1	inert -1	inert -1	inert host -1 C	inert -1
<input tabindex="-1"> within ::shadow 18 20	focusable -1 T	focusable -1 T R	focusable -1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable -1 R	focusable -1 R	inert null M 73	inert null M 73	inert null M 73	focusable -1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable -1 T R	inert null M 73
<input tabindex="0"> within ::shadow 18 20	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 0 R	tabbable 0 R	inert null M 73	inert null M 73	inert null M 73	tabbable 0 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 0 T R	inert null M 73
<input tabindex="2"> within ::shadow 18 20	tabbable 2 T	tabbable 2 T R	tabbable 2 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 2 R	tabbable 2 R	inert null M 73	inert null M 73	inert null M 73	tabbable 2 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 2 T R	inert null M 73
<input tabindex="1"> within ::shadow within ::shadow 18 20	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 1 R	tabbable 1 R	inert null M 73	inert null M 73	inert null M 73	tabbable 1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 1 T R	inert null M 73
::shadow[tabindex="-1"] 18 19	focusable -1	focusable -1 C	focusable -1 C	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1 C	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1 C	focusable -1
<input tabindex="-1"> within ::shadow[tabindex="-1"] 18 20 57	focusable -1 T	focusable -1 T R	focusable -1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable -1 R	focusable -1 R	inert null M 73	inert null M 73	inert null M 73	focusable -1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable -1 T R	inert null M 73
<input tabindex="0"> within ::shadow[tabindex="-1"] 18 20 57	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 0 R	tabbable 0 R	inert null M 73	inert null M 73	inert null M 73	tabbable 0 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 0 T R	inert null M 73
<input tabindex="2"> within ::shadow[tabindex="-1"] 18 20 57	tabbable 2 T	tabbable 2 T R	tabbable 2 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 2 R	tabbable 2 R	inert null M 73	inert null M 73	inert null M 73	tabbable 2 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 2 T R	inert null M 73
<input tabindex="1"> within ::shadow within ::shadow[tabindex="-1"] 18 20 57	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 1 R	tabbable 1 R	inert null M 73	inert null M 73	inert null M 73	tabbable 1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 1 T R	inert null M 73
::shadow[tabindex="0"] 18 19	tabbable 0	tabbable 0 C	tabbable 0 C	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0 C	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0 C	focusable 0
<input tabindex="-1"> within ::shadow[tabindex="0"] 18 20	focusable -1 T	focusable -1 T R	focusable -1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable -1 R	focusable -1 R	inert null M 73	inert null M 73	inert null M 73	focusable -1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable -1 T R	inert null M 73
<input tabindex="0"> within ::shadow[tabindex="0"] 18 20	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 0 R	tabbable 0 R	inert null M 73	inert null M 73	inert null M 73	tabbable 0 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 0 T R	inert null M 73
<input tabindex="2"> within ::shadow[tabindex="0"] 18 20	tabbable 2 T	tabbable 2 T R	tabbable 2 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 2 R	tabbable 2 R	inert null M 73	inert null M 73	inert null M 73	tabbable 2 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 2 T R	inert null M 73
<input tabindex="1"> within ::shadow within ::shadow[tabindex="0"] 18 20	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	tabbable 1 R	tabbable 1 R	inert null M 73	inert null M 73	inert null M 73	tabbable 1 T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	focusable 1 T R	inert null M 73

Iframe Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<iframe src="…"> without focusable content 21	focusable 0	tabbable 0 S	tabbable 0 S	focusable 0	focusable 0	focusable 0	focusable 0	tabbable 0 E S C	tabbable 0 E S C	focusable 0 C	focusable 0 C	focusable 0 C	tabbable 0 S	tabbable 0 S	tabbable 0 S	tabbable 0 S	tabbable 0 S	focusable 0 S	focusable 0 S
<iframe src="…" tabindex="-1"> without focusable content 21	focusable -1	focusable -1 S	focusable -1 S	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1 E S C	focusable -1 E S C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 S	focusable -1 S	focusable -1 S	focusable -1 S	focusable -1 S	focusable -1 S	focusable -1 S
<iframe src="…"> with SVG document 21	focusable 0	focusable 0 S C	focusable 0 S C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	tabbable 0 E S C	focusable 0 E S C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C
<iframe src="…"> with focusable content 21	focusable 0	focusable 0 S C	focusable 0 S C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 E S C	focusable 0 E S C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C	focusable 0 S C
<html> within <iframe src="…"> 2 21	inert -1	inert -1 R	inert -1 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable -1 E S T R	focusable -1 E S T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<body> within <iframe src="…"> 3 21	inert -1	focusable -1 E S R	focusable -1 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	inert -1 R	inert -1 R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R
<html> within <iframe src="…"> with focusable content 2 21	inert -1	inert -1 R	inert -1 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	tabbable -1 E S T R	tabbable -1 E S T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<html> within <iframe src="…" tabindex="-1"> 2 21	inert -1	inert -1 R	inert -1 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable -1 E S T R	focusable -1 E S T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<body> within <iframe src="…" tabindex="-1"> 3 21 55	inert -1	focusable -1 E S R	focusable -1 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	inert -1 R	inert -1 R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R
<html> within <iframe src="…" tabindex="-1"> 2 21	inert -1	inert -1 R	inert -1 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable -1 E S T R	focusable -1 E S T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<input> within <iframe src="…"> 21 21	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	focusable 0 T R	focusable 0 T R
<input> within <iframe src="…" tabindex="-1"> 21 55	focusable 0 T	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<input tabindex="1"> within <iframe src="…"> 21	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	tabbable 1 R	tabbable 1 R	tabbable 1 R	tabbable 1 R	tabbable 1 T R	tabbable 1 T R	tabbable 1 T R	tabbable 1 T R	tabbable 1 T R	tabbable 1 T R	tabbable 1 R	tabbable 1 R	tabbable 1 R	tabbable 1 R	focusable 1 T R	focusable 1 R
<input tabindex="1"> within <iframe src="…" tabindex="-1"> 21 55	focusable 1 T	focusable 1 T R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 T R	focusable 1 T R	focusable 1 T R	focusable 1 T R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<iframe src="…" style="visibility: hidden">	inert 0	inert host 0 C	inert host 0 C	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C
<html> within <iframe src="…" style="visibility: hidden"> 2	inert -1	inert -1 R	inert -1 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable -1 E S R	focusable -1 E S R	inert 0 R	inert 0 R	inert 0 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<body> within <iframe src="…" style="visibility: hidden"> 3	inert -1	focusable -1 E S R	focusable -1 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	inert -1 R	inert -1 R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R
<input> within <iframe src="…" style="visibility: hidden">	inert 0	focusable 0 T R	focusable 0 T R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<input tabindex="-1"> within <iframe src="…" style="visibility: hidden">	inert 1	focusable 1 T R	focusable 1 T R	inert 1 R	inert 1 R	inert 1 R	inert 1 R	inert 1 R	inert 1 R	inert 1 R	inert 1 R	inert 1 R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<iframe src="…" style="display: none">	inert 0	inert host 0 C	inert host 0 C	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C
<body> within <iframe src="…" style="display: none"> 3	inert -1	focusable -1 E S R	focusable -1 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable -1 E S R	focusable -1 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R
<iframe src="…"> within <details>	inert 0	inert host 0 C	inert host 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	inert 0	inert 0	focusable 0 C	focusable 0 C	focusable 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C
<html> within <iframe src="…"> within <details> 2	inert -1	inert -1 R	inert -1 R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	inert -1 R	inert -1 R	focusable 0 T R	focusable 0 T R	focusable 0 T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<body> within <iframe src="…"> within <details> 3	inert -1	focusable -1 E S R	focusable -1 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable 0 E S R	focusable -1 E S R	focusable -1 E S R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R	focusable -1 E S R
<input> within <iframe src="…"> within <details>	inert 0	focusable 0 T R	focusable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	inert 0 R	inert 0 R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<input tabindex="-1"> within <iframe src="…"> within <details>	inert 1	focusable 1 T R	focusable 1 T R	tabbable 1 R	tabbable 1 R	tabbable 1 R	tabbable 1 R	inert 1 R	inert 1 R	tabbable 1 T R	tabbable 1 T R	tabbable 1 T R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R

Embed Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<embed type="video/quicktime" src="…"> 28 30	focusable 0	focusable 0	focusable 0	inert 0	inert 0	inert null M 73	inert null M 73	focusable -1 E S	focusable -1 E S	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	focusable 0	inert -1
<embed type="video/quicktime" src="…" tabindex="-1"> 28 30	focusable -1	focusable -1	focusable -1	inert -1	inert -1	inert null M 73	inert null M 73	focusable -1 E S	focusable -1 E S	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<embed type="video/mp4" src="…"> 28 30	focusable 0	tabbable 0	tabbable 0	inert 0	inert 0	only tabbable 0 E S	only tabbable 0 E S	focusable -1 E S	focusable -1 E S	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	inert -1	inert -1	inert -1	focusable 0	inert -1
<embed type="video/mp4" src="…" tabindex="-1"> 28 30	focusable -1	focusable -1	focusable -1	inert -1	inert -1	inert -1	inert -1	focusable -1 E S	focusable -1 E S	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<embed type="video/ogv" src="…"> 28 30	focusable 0	focusable 0	focusable 0	inert 0	inert 0	inert 0	inert 0	focusable -1 E S	focusable -1 E S	inert 0	inert 0	inert 0	focusable 0	inert -1	inert -1	inert -1	inert -1	focusable 0	focusable 0
<embed type="video/ogv" src="…" tabindex="-1"> 28 30	focusable -1	focusable -1	focusable -1	inert -1	inert -1	inert -1	inert -1	focusable -1 E S	focusable -1 E S	inert -1	inert -1	inert -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<embed type="image/svg+xml" src="…"> 28 31	focusable 0	focusable 0 C	focusable 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	focusable -1 E S C	focusable -1 E S C	inert host 0 C	inert host 0 C	inert host 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C
<embed type="image/svg+xml" src="…" tabindex="-1"> 28 31	focusable -1	focusable -1 C	focusable -1 C	inert host -1 C	inert host -1 C	inert host -1 C	inert host -1 C	focusable -1 E S C	focusable -1 E S C	inert host -1 C	inert host -1 C	inert host -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C
<embed type="image/svg+xml" src="…" tabindex="0"> 28 31	focusable 0	focusable 0 C	focusable 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	tabbable 0 E S C	focusable 0 E S C	inert host 0 C	inert host 0 C	inert host 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C

Object Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<object type="application/x-shockwave-flash" data="…"> 32	focusable -1	focusable 0	focusable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable -1	focusable -1	inert 0	focusable 0 33	tabbable 0	focusable 0	focusable 0	focusable 0	focusable 0	focusable 0	focusable 0	focusable 0
<object type="application/x-shockwave-flash" data="…" tabindex="-1"> 32	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	inert -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<object type="application/x-shockwave-flash" data="…" tabindex="0"> 32	tabbable 0	focusable 0	focusable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	focusable 0 33	tabbable 0	focusable 0	focusable 0	focusable 0	focusable 0	focusable 0	focusable 0	focusable 0
<object type="image/svg+xml" data="…"> 32	focusable -1	focusable 0 C	focusable 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	tabbable 0 E S C	focusable 0 E S C	inert host 0 C	inert host 0 C	inert host 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C
<object type="image/svg+xml" data="…" tabindex="-1"> 32	focusable -1	focusable -1 C	focusable -1 C	inert host -1 C	inert host -1 C	inert host -1 C	inert host -1 C	focusable -1 E S C	focusable -1 E S C	inert host -1 C	inert host -1 C	inert host -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C	focusable -1 C
<object type="image/svg+xml" data="…" tabindex="0"> 32	tabbable 0	focusable 0 C	focusable 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	tabbable 0 E S C	focusable 0 E S C	inert host 0 C	inert host 0 C	inert host 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C	focusable 0 C
<object type="image/svg+xml" data="…" style="visibility: hidden">	inert 0	inert host 0 C 25	inert host 0 C 25	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C 25	inert host 0 C
<object type="image/svg+xml" data="…"> within <details>	focusable -1	inert 0	inert 0	inert host 0 C	inert host 0 C	inert host 0 C	inert host 0 C	inert 0	inert 0	inert host 0 C	inert host 0 C	inert host 0 C	inert 0	inert -1	inert -1	inert -1	inert -1	inert 0	inert -1

SVG Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<svg> 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	inert null M	inert null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<svg tabindex="-1"> 34	focusable -1	focusable -1	focusable -1	tabbable null M	tabbable null M	focusable null M	focusable null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<svg focusable="false" tabindex="-1">	focusable -1	focusable -1	focusable -1	inert null M	inert null M	inert null M	inert null M	inert null M	inert -1	inert null M	inert null M	inert null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<svg focusable="true" tabindex="-1">	focusable -1	focusable -1	focusable -1	tabbable null M	tabbable null M	tabbable null M	tabbable null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<svg> containing <a xlink:href="…" tabindex="-1"> 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	inert null M	inert null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<svg> containing <a xlink:href="…" tabindex="0"> 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	inert null M	inert null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<a xlink:href="…"> within <svg> 34	tabbable 0	tabbable 0	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a xlink:href="…"> within <svg tabindex="-1"> 34 56	tabbable 0	tabbable 0	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a xlink:href="…" focusable="false"> within <svg> 34	tabbable 0	tabbable 0	tabbable 0	inert null M	inert null M	inert null M	inert null M	only tabbable null M E S	tabbable -1	inert null M	inert null M	inert null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a xlink:href="…" tabindex="-1"> within <svg> 34	focusable -1	focusable -1	focusable -1	tabbable null M	tabbable null M	focusable null M	focusable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<a xlink:href="…" tabindex="0"> within <svg> 34	tabbable 0	tabbable 0	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a xlink:href="…" tabindex="1"> within <svg> 34	tabbable 1	tabbable 1	tabbable 1	tabbable null M	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable 1	tabbable null M	tabbable null M	tabbable null M	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	focusable 1	focusable 1
<rect tabindex="0"> 34	tabbable 0	tabbable 0	tabbable 0	inert null M	inert null M	tabbable null M	tabbable null M	inert null M	tabbable 0	inert null M	inert null M	inert null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<rect tabindex="-1"> 34	focusable -1	focusable -1	focusable -1	inert null M	inert null M	focusable null M	focusable null M	inert null M	inert -1	inert null M	inert null M	inert null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<rect focusable="true"> 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	tabbable null M	tabbable null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<a xlink:href="…"> within <svg focusable="false"> 34	tabbable 0	tabbable 0	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<svg viewBox="…"> 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	inert null M	inert null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<rect tabindex="0"> within <svg viewBox="…"> with position outside of box 34	tabbable 0	tabbable 0	tabbable 0	inert null M	inert null M	tabbable null M	tabbable null M	inert null M	tabbable 0	inert null M	inert null M	inert null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<rect tabindex="-1"> within <svg viewBox="…"> with position outside of box 34	focusable -1	focusable -1	focusable -1	inert null M	inert null M	focusable null M	focusable null M	inert null M	inert -1	inert null M	inert null M	inert null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<rect focusable="true"> within <svg viewBox="…"> with position outside of box 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	tabbable null M	tabbable null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<svg baseProfile="tiny"> 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	inert null M	inert null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<rect focusable="true"> within <svg baseProfile="tiny"> 34	inert -1	inert -1	inert -1	tabbable null M	tabbable null M	tabbable null M	tabbable null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<rect tabindex="0"> within <svg baseProfile="tiny"> 34	tabbable 0	tabbable 0	tabbable 0	inert null M	inert null M	tabbable null M	tabbable null M	inert null M	tabbable 0	inert null M	inert null M	inert null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a xlink:href="…" focusable="true"> within <svg baseProfile="tiny"> 34	tabbable 0	tabbable 0	tabbable 0	inert null M	inert null M	inert null M	inert null M	only tabbable null M E S	tabbable -1	inert null M	inert null M	inert null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a xlink:href="…" tabindex="-1"> within <svg baseProfile="tiny"> 34	focusable -1	focusable -1	focusable -1	tabbable null M	tabbable null M	focusable null M	focusable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<rect focusable="true" tabindex="0"> within <svg baseProfile="tiny">	tabbable 0	tabbable 0	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable null M	inert null M	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<rect focusable="true" tabindex="-1"> within <svg baseProfile="tiny"> 34	focusable -1	focusable -1	focusable -1	tabbable null M	tabbable null M	tabbable null M	tabbable null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<rect focusable="false" tabindex="0"> within <svg baseProfile="tiny"> 34	tabbable 0	tabbable 0	tabbable 0	inert null M	inert null M	inert null M	inert null M	inert null M	tabbable 0	inert null M	inert null M	inert null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<rect focusable="false" tabindex="-1"> within <svg baseProfile="tiny">	focusable -1	focusable -1	focusable -1	inert null M	inert null M	inert null M	inert null M	inert null M	inert -1	inert null M	inert null M	inert null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<a xlink:href="…"> within <svg baseProfile="tiny" focusable="false"> 34	tabbable 0	tabbable 0	tabbable 0	tabbable null M	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M E	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<rect onfocus=""> 34 41	inert -1	tabbable 0 40	tabbable 0 40	inert null M	inert null M	inert null M	inert null M	inert null M	inert -1	inert null M	inert null M	inert null M	tabbable 0 40	tabbable 0 40	tabbable 0 40	tabbable 0	tabbable 0 40	focusable 0 40	focusable 0

SVG foreignObject element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<input> within <foreignObject> 35	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input tabindex="-1"> within <foreignObject> 35	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input tabindex="0"> within <foreignObject> 35	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input tabindex="1"> within <foreignObject> 35	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	focusable 1	tabbable 1
<foreignObject tabindex="-1"> 35	focusable -1	focusable -1	focusable -1	inert null M	inert null M	inert null M	inert null M	inert null M	inert -1	inert null M	inert null M	inert null M	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input> within <foreignObject tabindex="-1"> 35	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input tabindex="-1"> within <foreignObject tabindex="-1"> 35	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input tabindex="0"> within <foreignObject tabindex="-1"> 35	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input tabindex="1"> within <foreignObject tabindex="-1"> 35	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	focusable 1	tabbable 1
<input> within <foreignObject> within <switch> 35	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input tabindex="-1"> within <foreignObject> within <switch> 35	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input tabindex="0"> within <foreignObject> within <switch> 35	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input tabindex="1"> within <foreignObject> within <switch> 35	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	tabbable 1	focusable 1	tabbable 1

SVG use element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<svg> with <use> as content	inert -1	inert -1	inert -1	inert null M 73	tabbable null M	inert null M	inert null M	inert null M	inert -1	tabbable null M	tabbable null M	tabbable null M	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<a xlink:href="…"> within <defs>	inert 0	tabbable 0	tabbable 0	inert null M 73	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a xlink:href="…"> within <g>	tabbable 0	tabbable 0	tabbable 0	inert null M 73	tabbable null M	tabbable null M	tabbable null M	only tabbable null M E S	tabbable -1	tabbable null M	tabbable null M	tabbable null M E	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<use> referencing focusable content	inert -1	only tabbable -1 S 37	only tabbable -1 S 37	inert null M 73	inert null M	inert null M	inert null M	inert null M	inert -1	inert null M	inert null M	inert null M	only tabbable -1 S	inert -1 38	only tabbable -1 S	only tabbable -1 S	only tabbable -1 S	inert -1	inert -1
<use tabindex="-1"> referencing focusable content	focusable -1	tabbable -1 37	tabbable -1 37	inert null M 73	inert null M	inert null M	inert null M	inert null M	inert -1	inert null M	inert null M	inert null M	tabbable -1	focusable -1 38	tabbable -1	focusable -1	focusable -1	focusable -1	focusable -1

SVG Document in Iframe Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<svg> within <iframe> 21 21	inert -1	inert -1 R	inert -1 R	tabbable null M T R	tabbable null M T R	only tabbable null M E S T R	only tabbable null M E S T R	inert null M T R	tabbable -1 E S T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <iframe> 21	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	tabbable null M R	tabbable null M R	tabbable null M T R	tabbable null M T R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	tabbable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <iframe> 21	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable 1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 1 T R	tabbable 1 R	tabbable 1 R	tabbable 1 R	tabbable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <iframe> 21	focusable -1 T	focusable -1 T R	focusable -1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <iframe> 21	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	only tabbable null M E S R	tabbable -1 T R	inert null M R	inert null M R	inert null M R	tabbable 0 T R	tabbable 0 R	tabbable 0 R	tabbable 0 R	tabbable 0 R	focusable 0 T R	focusable 0 R
<svg> within <iframe tabindex="-1"> 55	inert -1 T	inert -1 R	inert -1 R	focusable null M T R	focusable null M T R	inert null M T R	inert null M T R	inert null M T R	focusable -1 E S T R	focusable null M T R	focusable null M T R	focusable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <iframe tabindex="-1"> 21 55	focusable 0 T	focusable 0 T R	focusable 0 T R	focusable null M R	focusable null M R	focusable null M T R	focusable null M T R	inert null M R	focusable -1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <iframe tabindex="-1"> 21 55	focusable 1 T	focusable 1 T R	focusable 1 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable 1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <iframe tabindex="-1"> 21 55	focusable -1 T	focusable -1 T R	focusable -1 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable -1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <iframe tabindex="-1"> 21 55	focusable 0 T	focusable 0 T R	focusable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	focusable -1 T R	inert null M R	inert null M R	inert null M R	focusable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R

SVG Document in Embed Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<svg> within <embed> 23 23	inert -1	inert -1 R	inert -1 R	tabbable null M T R	tabbable null M T R	inert null M T R	inert null M T R	inert null M T R	focusable -1 E S T R	tabbable null M T R	tabbable null M T R	tabbable null M E T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <embed> 23	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	inert null M R	focusable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <embed> 23	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	inert null M R	focusable 1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <embed> 23	focusable -1 T	focusable -1 T R	focusable -1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	inert null M R	focusable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <embed> 23	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	focusable -1 T R	inert null M R	inert null M R	inert null M R	tabbable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R
<svg> within <embed tabindex="0"> 23	inert -1	inert -1 R	inert -1 R	tabbable null M T R	tabbable null M T R	inert null M T R	inert null M T R	inert null M T R	tabbable -1 E S T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <embed tabindex="0"> 23	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <embed tabindex="0"> 23	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable 1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <embed tabindex="0"> 23	focusable -1 T	focusable -1 T R	focusable -1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <embed tabindex="0"> 23	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	only tabbable null M E S R	tabbable -1 T R	inert null M R	inert null M R	inert null M R	tabbable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R
<svg> within <embed tabindex="-1"> 23 55	inert -1	inert -1 R	inert -1 R	focusable null M T R	focusable null M T R	inert null M T R	inert null M T R	inert null M T R	focusable -1 E S T R	focusable null M T R	focusable null M T R	focusable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <embed tabindex="-1"> 23 55	focusable 0 T	focusable 0 T R	focusable 0 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable -1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <embed tabindex="-1"> 23 55	focusable 1 T	focusable 1 T R	focusable 1 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable 1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <embed tabindex="-1"> 23 55	focusable -1 T	focusable -1 T R	focusable -1 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable -1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <embed tabindex="-1"> 23 55	focusable 0 T	focusable 0 T R	focusable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	focusable -1 T R	inert null M R	inert null M R	inert null M R	focusable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R

SVG Document in Object Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<svg> within <object> 26 26	inert -1	inert -1 R	inert -1 R	tabbable null M T R	tabbable null M T R	inert null M T R	inert null M T R	inert null M T R	tabbable -1 E S T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <object> 26	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <object> 26	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable 1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <object> 26	focusable -1 T	focusable -1 T R	focusable -1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <object> 26	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	only tabbable null M E S R	tabbable -1 T R	inert null M R	inert null M R	inert null M R	tabbable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R
<svg> within <object tabindex="0"> 26	inert -1	inert -1 R	inert -1 R	tabbable null M T R	tabbable null M T R	inert null M T R	inert null M T R	inert null M T R	tabbable -1 E S T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <object tabindex="0"> 26	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <object tabindex="0"> 26	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable 1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <object tabindex="0"> 26	focusable -1 T	focusable -1 T R	focusable -1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <object tabindex="0"> 26	tabbable 0	tabbable 0 T R	tabbable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	only tabbable null M E S R	tabbable -1 T R	inert null M R	inert null M R	inert null M R	tabbable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R
<svg> within <object tabindex="-1"> 26 55	inert -1	inert -1 R	inert -1 R	focusable null M T R	focusable null M T R	inert null M T R	inert null M T R	inert null M T R	focusable -1 E S T R	focusable null M T R	focusable null M T R	focusable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <object tabindex="-1"> 26 55	focusable 0 T	focusable 0 T R	focusable 0 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable -1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <object tabindex="-1"> 26 55	focusable 1 T	focusable 1 T R	focusable 1 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable 1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <object tabindex="-1"> 26 55	focusable -1 T	focusable -1 T R	focusable -1 T R	focusable null M R	focusable null M R	focusable null M R	focusable null M R	inert null M R	focusable -1 T R	focusable null M T R	focusable null M T R	focusable null M T R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <object tabindex="-1"> 26 55	focusable -1 T	focusable 0 T R	focusable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	focusable -1 T R	inert null M R	inert null M R	inert null M R	focusable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R
<svg> within <object height="0"> 26	inert -1	inert -1 R	inert -1 R	tabbable null M T R	tabbable null M T R	inert null M T R	inert null M T R	inert null M T R	tabbable -1 E S T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <object height="0"> 26	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 0 T R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable 0 T R	inert 0 R
<a xlink:href="…" tabindex="1"> within <object height="0"> 26	tabbable 1 T	tabbable 1 T R	tabbable 1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable 1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	tabbable 1 T R	inert 1 R	inert 1 R	inert 1 R	inert 1 R	focusable 1 T R	inert 1 R
<a xlink:href="…" tabindex="-1"> within <object height="0"> 26	focusable -1 T	focusable -1 T R	focusable -1 T R	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	only tabbable null M E S R	tabbable -1 T R	tabbable null M T R	tabbable null M T R	tabbable null M T R	focusable -1 T R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	focusable -1 T R	inert -1 R
<a xlink:href="…" focusable="false"> within <object height="0"> 26	tabbable 0 T	tabbable 0 T R	tabbable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	only tabbable null M E S R	tabbable -1 T R	inert null M R	inert null M R	inert null M R	tabbable 0 T R	inert 0 R	inert 0 R	inert 0 R	inert 0 R	focusable 0 T R	inert 0 R
<svg> within <object style="display: none">	inert null	inert null M 73	inert null M 73	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	focusable -1 E S R	inert null M R	inert null M R	inert null M R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73
<svg> within <object style="visibility: hidden">	inert -1	inert -1 R	inert -1 R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	focusable -1 E S R	inert null M R	inert null M R	inert null M R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R	inert -1 R
<a xlink:href="…"> within <object style="visibility: hidden">	inert 0	focusable 0 T R	focusable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	inert -1 R	inert null M R	inert null M R	inert null M R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R	focusable 0 T R
<a xlink:href="…" tabindex="1"> within <object style="visibility: hidden">	inert 1	focusable 1 T R	focusable 1 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	inert 1 R	inert null M R	inert null M R	inert null M R	focusable 1 T R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 R	focusable 1 T R	focusable 1 R
<a xlink:href="…" tabindex="-1"> within <object style="visibility: hidden">	inert -1	focusable -1 T R	focusable -1 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	inert -1 R	inert null M R	inert null M R	inert null M R	focusable -1 T R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 R	focusable -1 T R	focusable -1 R
<a xlink:href="…" focusable="false"> within <object style="visibility: hidden">	inert 0	focusable 0 T R	focusable 0 T R	inert null M R	inert null M R	inert null M R	inert null M R	inert null M R	inert -1 R	inert null M R	inert null M R	inert null M R	focusable 0 T R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 R	focusable 0 T R	focusable 0 R
<svg> within <object> within <details>	inert -1	inert null M 73	inert null M 73	tabbable null M T R	tabbable null M T R	inert null M T R	inert null M T R	inert null M R	focusable -1 E S R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73
<a xlink:href="…"> within <object> within <details>	inert 0	inert null M 73	inert null M 73	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	inert null M R	inert -1 R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73
<a xlink:href="…" tabindex="1"> within <object> within <details>	inert 1	inert null M 73	inert null M 73	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	inert null M R	inert 1 R	tabbable null M T R	tabbable null M T R	tabbable null M T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73
<a xlink:href="…" tabindex="-1"> within <object> within <details>	inert -1	inert null M 73	inert null M 73	tabbable null M R	tabbable null M R	tabbable null M R	tabbable null M R	inert null M R	inert -1 R	tabbable null M T R	tabbable null M T R	tabbable null M E T R	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73	inert null M 73

Hidden Attribute

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<input> within <div hidden>	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	tabbable 0 43	tabbable 0 43	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0
<div hidden tabindex="-1">	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	focusable -1 43	focusable -1 43	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<input> within <div hidden tabindex="-1">	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	tabbable 0 43	tabbable 0 43	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0
<div hidden tabindex="0">	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	tabbable 0 43	tabbable 0 43	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0
<input> within <div hidden tabindex="0">	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	tabbable 0 43	tabbable 0 43	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0
<input> within <div hidden style="display: block"> 44	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0 E	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0

CSS Property Visibility

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<a href="…" style="visibility: visible"> within <div style="visibility: hidden">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0 E	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…"> within <div style="visibility: visible"> within <div style="visibility: hidden">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…"> within <td> within <tr>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…" style="visibility: visible"> within <td> within <tr style="visibility: collapse">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…"> within <td style="visibility: visible"> within <tr style="visibility: collapse">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0

Canvas Fallback Content Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<span tabindex="-1"> child of <canvas>	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1 E	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<span tabindex="0"> child of <canvas>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…"> child of <canvas>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…" tabindex="-1"> child of <canvas>	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<input> child of <canvas>	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input tabindex="-1"> child of <canvas>	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1

Details Element

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<details tabindex="-1"> 45	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<a href="…"> within <details> 45	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0 E	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0
<summary tabindex="-1"> within <details> 45	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<a href="…"> within <details tabindex="-1"> 45	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0
<a href="…"> within <details> that has <summary tabindex="-1"> 45	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0	inert 0
<summary> within <details> 45	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<summary> within <details tabindex="-1"> 45	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…"> within <details open> 45	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0 E	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<summary> within <details open> 45	tabbable 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0

Scrollable Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<div> child of horizontally overflowing <div style="overflow: auto">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<div> child of overflowing <div style="overflow: hidden">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<div> child of overflowing <div style="overflow: scroll">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<div> child of overflowing <div style="overflow: visible">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<div> child of not overflowing <div style="overflow: scroll">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<div> child of not overflowing <div style="overflow: scroll">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
horizontally overflowing <div style="overflow: auto">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	tabbable -1	tabbable -1	focusable 0	focusable 0	focusable 0 E	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
overflowing <div style="overflow: hidden">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
overflowing <div style="overflow: scroll">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	tabbable -1	tabbable -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
overflowing <div style="overflow: visible">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
not overflowing <div style="overflow: auto">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	tabbable -1	tabbable -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
overflowing <section style="overflow: scroll">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	tabbable -1	tabbable -1	inert 0	inert 0 46	inert 0 46	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<div style="overflow: scroll" tabindex="-1">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<div> child of <div style="overflow: scroll" tabindex="-1">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1

Image Element Ismap Attribute

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<a href="…"> containing <img ismap src="…">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<a href="…" tabindex="-1"> containing <img ismap src="…">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<a href="…"> containing <img ismap src="…" tabindex="-1">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<img ismap src="…" tabindex="-1"> child of <a href="…">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<img ismap src="…"> child of <a href="…">	inert -1	inert -1	inert -1	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert -1	inert -1	tabbable 0 47	tabbable 0 47	tabbable 0 47	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<img ismap src="…"> child of <a href="…" tabindex="-1">	inert -1	inert -1	inert -1	tabbable 0	tabbable 0	tabbable 0	tabbable 0	inert -1	inert -1	tabbable 0 47	tabbable 0 47	tabbable 0 47	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1

CSS Flexbox Layout

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<span> child of <a href="…" style="display: flex">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	inert 0	focusable 0 48	focusable 0 48	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<span> child of <div tabindex="-1" style="display: flex">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	inert 0	focusable 0 48	focusable 0 48	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<span tabindex="-1"> child of <div tabindex="-1" style="display: flex">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<span tabindex="0"> child of <div tabindex="-1" style="display: flex">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<span style="display: flex">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	inert 0	focusable 0 48	focusable 0 48	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<span> child of <span style="display: flex">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	inert 0	focusable 0 48	focusable 0 48	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<span tabindex="-1"> child of <span style="display: flex">	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1
<span tabindex="0"> child of <span style="display: flex">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<span style="order: 1"> with focusable child	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	inert 0	focusable 0 48	focusable 0 48	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<input type="text"> within a <span> within <div style="display: flex">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0
<input type="text"> within a <span> within <div style="display: flex">	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	tabbable 0

Table Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<table>	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<td>	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0 E	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1
<td style="visibility: visible"> within <tr style="visibility: collapse">	inert -1	inert -1	inert -1	inert 0	inert 0	inert 0	inert 0	inert -1	inert -1	focusable 0	focusable 0	focusable 0	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1	inert -1

Questionable Elements

Element	Expected	Chrome		Microsoft Edge				Firefox		IE			Opera	Safari			WebKit Nightly	Chrome Mobile (Android)	Safari (iOS)
		55.0	57.0	12.10240	13.10586	14.14393	15.14951	50.0	53.0	9.0	10.0	11.0	42.0	8.0	9.1	10.0	604.1	55.0	10.0
<keygen …> 53	tabbable 0	tabbable 0	inert -1	inert 0	inert 0	inert 0	inert 0	tabbable 0 52	tabbable 0 52	inert 0	inert 0	inert 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	tabbable 0	focusable 0	focusable 0
<keygen … tabindex="-1"> 53	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1 52	focusable -1 52	inert -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1	focusable -1

Footnotes

• The DOM Element Interface is missing the focus method.
• The focus event is not emitted upon the element becoming the active element (document.activeElement).
• The :focus CSS pseudo class is not set on the element when it is the active element (document.activeElement).
• The element becomes the active element (document.activeElement) when an element of contentDocument or the shadowRoot has focus.

• Note 2

  The <html> element itself is not considered focusable, but some browsers may give it focus when focus is passed from browser UI to the document.

• Note 3

  The <body> element itself is not considered focusable, but it is has focus (i.e. is document.activeElement) if no other element has focus.

• Note 4

  HTML5 does not specify that the <form> element knows the disabled attribute.

• Note 5

  should not be focusable as per disabled elements. Blink 453847, Webkit 141086

• Note 6

  The activation behavior of the <label> element is not defined beyond »… should match the platform's label behavior.«

• Note 7

  Internet Explorer redirects focus from <label> to the referenced form control element upon mouse click, but not on script focus via element.focus().

• Note 8

  The CSS property user-modify was proposed and dropped from CSS UI Level 3 and has thus not become a standard yet.

• Note 9

  The value is invalid according to rules for parsing integers required by HTML5 tabindex

• Note 10

  tabindex="" is parsed to the value -32768. Trident 1072965

• Note 11

  The value's trailing spaces are considered invalid according to rules for parsing integers required by HTML5 tabindex

• Note 12

  The value's trailing non-numeric characters are considered invalid according to rules for parsing integers required by HTML5 tabindex

• Note 13

  The <map>'s <area>s are inert (not focusable) as long as the image is still loading.

• Note 14

  If an <area> element doesn't have an href attribute, it's not a link (and should therefore not be interactive).

• Note 15

  Some browsers will not make an image map focusable, if it is associated with an <img> that does have a proper image loaded.

• Note 16

  <audio> is considered interactive content only with the <code>controls</code> attribute present

• Note 17

  <video> is considered interactive content only with the <code>controls</code> attribute present

• Note 18

  Shadow DOM is currently only "properly" supported in Blink based browsers (Chrome, Opera). Firefox exposes the (considerably buggy) development state behind flags.

  See Can I Use.

• Note 19

  Regardless of its own focusable state, an element hosting a Shadow DOM can become the activeElement if an element inside the ShadowRoot has focus. See Shadow DOM - Active Element

• Note 20

  The activeElement is scoped within the Shadow DOM, meaning the master documet does not know which shadowed content currently has focus. To indicate that a shadowed element has focus, the element hosting the shadowed content is made the activeElement regardless of its ability to receive focus otherwise.

• Note 21

  Technically the content of an iframe can be accessible to script.

• Note 23

  There is no API to interact with the content document of an <embed> element

• Note 25

  <object> with visibility:hidden should not be focusable - Blink 586191

• Note 26

  Technically the content of an <object> element can be accessible to script.

• Note 28

  The behavior of the <embed> element depends on the content type and browser plugin.

• Note 30

  The <video> element should be used for embedding video content instead of <embed> element. The HTML5 <video> element is supported virtually everywhere.

• Note 31

  It is highly recommended to embed <svg> directly into the document or use the <object> element instead.

• Note 32

  The behavior of the <object> element depends on the content it presents. The most common content types used with <object> are SVG and SWF.

• Note 33

  This element is actually tabbable (keyboard focusable).

  But when tabbing to it, the <kbd>Tab</kbd> behavior for the entire document breaks, as focus remains stuck on the browser UI.

  This might be related to Trident 1109008.

• Note 34

  SVG 1.1 does not specify much in respect to accessibility. SVG 2 will bring the tabindex attribute. SVG Tiny 1.2 knows the focusable attribute.

• Note 35

  The foreignObject element knows the attributes requiredExtensions and requiredFeatures, which can prevent the rendering of the element's content. But SVG1.1 never defined how exactly these properties should work and browser implementations vary. There is no DOM API to reliably determine if either of these properties prevented the rendering of the element's content.

• Note 37

  The <use> element is keyboard focusable if it references content that contains focusable elements. Blink 665121

• Note 38

  This element is actually tabbable (keyboard focusable).

  However, as soon as a <use> element became the active element, the <kbd>Tab</kbd> effectively becomes useless, because the tabbing order cannot be navigated anymore. See this demo.

• Note 40

  By registering a focus event listener the element becomes focusable. Blink 445798, WebKit 140024.

  This is undetectable because elements don't provide a list of their registered event handlers.

• Note 41

  SVG 2: Focus says:

  In particular, user agents may support using keyboard focus to reveal ‘title’ element text as tooltips, and may allow focus to reach elements which have been assigned listeners for mouse, pointer, or focus events

• Note 43

  IE9 and IE10 do not support the hidden attribute.

• Note 44

  The hidden attribute itself has no effect on whether an element is focusable or not. It's the CSS style disaply: none that is set by the hidden attribute that counts.

• Note 45

  The <details> element is specified in HTML 5.1, but not implemented everywhere.

• Note 46

  Internet Explorer turns <div> and <span> elements focusable when they're scrollable, but does not do the same for other sectioning or block-level elements

• Note 47

  The ismap attribute makes the <img> focusable (in addition to the parent <a>)

• Note 48

  There is no indication that the focusability of an element can be inherited by its children, let alone triggered by flexbox layout.

• Note 50

  Firefox may hide elements from the document's tabbing sequence if they're enclosed by two images referencing the same image map - Gecko 1116126.

• Note 51

  This test is not about an element's focusable state, but about potentially content that's potentially hidden from the tabbing sequence.

• Note 52

  Firefox transforms <keygen> to <select _moz-type="-mozilla-keygen"> while parsing HTML.

• Note 53

  The <keygen> element is poorly supported, practically never used and has seen intent to deprecate

• Note 55

  Keyboard focusable (tabbable) content in nested browsing contexts (<iframe>, <object>, <element>) is demoted to script and mouse focusable if the browsing context container has tabindex="-1".

• Note 56

  The focusable state of descendant elements of an <svg> element are not affected by tabindex="-1" on the <svg> element, contrary to the behavior of browsing contexts (<iframe>, <object>, <element>).

• Note 57

  The focusable state of content elements in Shadow DOM are not affected by tabindex="-1" on the shadow host, contrary to the behavior of browsing contexts (<iframe>, <object>, <element>).

• Note 58

  Focus is redirected to the labeled control.

• Note 59

  Focus is redirected to the nested labeled control.

• Note 60

  Focus is redirected to the the next keyboard focusable (tabbable) element after the <legend> in DOM order (not in order of the document's tab sequence). Note that this does not necessarily have to be a descendant of the same <fieldset> element.

• Note 61

  Focus is redirected to the the first focusable form control element (<input>, <select>, <textarea>, <button>) of the <fieldset> the <legend> is the child of.

• Note 62

  Focus is redirected to the the first <area> element of the referenced image map.

• Note 63

  The <iframe>'s document manages its own focus. Any time the <iframe> or its content has focus, the master document's activeElement points to the <iframe>.

  Note that <iframe>s are only accessible to script when they share the same origin.

• Note 64

  Browser plugins running the <embed> can manage their own focus. Any time the <embed> or its content has focus, the master document's activeElement points to the <embed>.

  Note that the content of <embed> elements is not accessible to scripting from the outside, but from within the <embed>'s document JavaScript can interact with window.parent.

• Note 65

  The <object>'s document manages its own focus. Any time the <object> or its content has focus, the master document's activeElement points to the <object>.

  Note that <object>s are only accessible to script via element.contentWindow when they share the same origin.

• Note 66

  Whenever an element within a ShadowRoot has focus, the element hosting the ShadowRoot is considered the activeElement of the document, as per the active element adjustment algorithm.

  Firefox' Shadow DOM implementation still has a few problems: Gecko 1117535, Gecko 1117544, Gecko 1117552.

• Note 73

  This element could not be tested in this browser.

• Note 74

  When this element is the activeElement, the reference element <img usemap="…"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 75

  When this element is the activeElement, the reference element <img usemap="…"> has the following state:

  • is not the activeElement in its context
  • has the :focus CSS pseudo class applied
  • receives a focus event

• Note 76

  When this element is the activeElement, the reference element <img usemap="…"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 77

  When this element is the activeElement, the reference element <img usemap="…"> has the following state:

  • is not the activeElement in its context
  • has the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 78

  When this element is the activeElement, the reference element <iframe> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 79

  When this element is the activeElement, the reference element <iframe> has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 80

  When this element is the activeElement, the reference element details object[src=svg] has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 81

  When this element is the activeElement, the reference element details object[src=svg] has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 82

  When this element is the activeElement, the reference element details object[src=svg] has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 83

  When this element is the activeElement, the reference element <embed type="image/svg+xml"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 84

  When this element is the activeElement, the reference element <embed type="image/svg+xml"> has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 85

  When this element is the activeElement, the reference element <embed type="image/svg+xml"> has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 86

  When this element is the activeElement, the reference element <embed type="image/svg+xml"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 87

  When this element is the activeElement, the reference element <iframe> has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 88

  When this element is the activeElement, the reference element <iframe> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 89

  When this element is the activeElement, the reference element <object usemap="…"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 90

  When this element is the activeElement, the reference element <object usemap="…"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 91

  When this element is the activeElement, the reference element <object type="image/svg+xml"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 92

  When this element is the activeElement, the reference element <object type="image/svg+xml"> has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 93

  When this element is the activeElement, the reference element <object type="image/svg+xml"> has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 94

  When this element is the activeElement, the reference element <object type="image/svg+xml"> has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • does not receive a focus event

• Note 96

  When this element is the activeElement, the reference element ShadowHost has the following state:

  • is the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event

• Note 97

  When this element is the activeElement, the reference element ShadowHost has the following state:

  • is not the activeElement in its context
  • does not have the :focus CSS pseudo class applied
  • receives a focus event