Is there an existing issue for this?

• I have searched the existing issues

OS/Web Information

• Web Browser: Mozilla Firefox 152.0.4
• Local OS: Microsoft Windows 11 Pro for Workstation
• Remote OS: Linux Debian 13
• Remote Architecture: amd64 (x86_64)
• code-server --version:

Steps to Reproduce

Try upload an local downloaded file, directly via drag&drop from the download icon from the browser:

Expected

Fully upload of the file

Actual

Logs

Screenshot/Video

No response

Does this bug reproduce in native VS Code?

This cannot be tested in native VS Code

Does this bug reproduce in VS Code web?

I did not test VS Code web

Does this bug reproduce in GitHub Codespaces?

Yes, this is also broken in GitHub Codespaces

Are you accessing code-server over a secure context?

• I am using a secure context.

Notes

No response