iframe-proxy

ivasilov · 2026-10-20T09:52:51Z

Problem

The marketing site (apps/www) is still on Next.js 15. Resolves FE-4673.

Solution

Upgrades apps/www to Next.js 16.3.6 (next now uses the workspace catalog; @next/mdx and @next/bundle-analyzer are bumped to match). Fixes for breaking changes: middleware.ts renamed to proxy.ts, removed the eslint key from next.config.mjs, moved Sentry options under webpack, and added images.localPatterns and images.qualities. dev and build:next now run with --webpack, because the MDX remark plugins have non-serializable options and esmExternals: 'loose' is ignored by Turbopack.

Review instructions

Run pnpm --filter=www typecheck and pnpm --filter=www test.
Run pnpm dev:www and open /pricing and /blog/vector-buckets; both should render, including images.
Check the Vercel preview build. Locally, next build needed NODE_OPTIONS=--max-old-space-size=8192, so confirm memory is sufficient. proxy.ts now runs on the Node.js runtime instead of edge.

Checklist

Check all before review:

I have read CONTRIBUTING.md
If I wrote a new docs topic or edited an existing topic, I used the /write-the-docs or /edit-the-docs skill, which applies the docs style guide

🤖 Generated with Claude Code

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

vercel · 2026-10-20T09:52:58Z

supabase · 2026-10-20T09:53:03Z

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coderabbitai · 2026-10-20T09:54:00Z

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packages/ai-commands/package.json
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📝 Walkthrough

The www app updates its Next.js scripts, package versions, image and webpack configuration, and exported request handler name. The handler’s request-processing behavior and existing test expectations remain unchanged.

Changes: www Next.js update

Layer / File(s)	Summary
Next.js package and scripts `apps/www/package.json`	The dev and Next.js build scripts now pass `--webpack`. The bundle analyzer and MDX packages are upgraded, and the Next.js version uses the shared catalog.
Next.js image and webpack settings `apps/www/next.config.mjs`	The configuration allows local image query strings and accepts quality values 75, 80, and 100. It removes the build lint-skip setting and updates Sentry and logger webpack options.
Proxy export and tests `apps/www/proxy.ts`, `apps/www/proxy.test.ts`	The exported handler is renamed from `middleware` to `proxy`. Existing tests call `proxy` and retain their scenarios and expectations.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~12 minutes

Change: Other

Suggested reviewers: pamelachia

Merge Risk: ⚪ Minimal · up to eae31

No actionable issue remains that should prevent merging after normal checks.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 37.50% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 8 functions across 6 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Title check		The title clearly and concisely identifies the primary change: upgrading the www application to Next.js 16.
Description check		The description includes the required Problem, Solution, Review instructions, and Checklist sections. It explains the motivation, implementation details, breaking-change fixes, testing steps, and depl…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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Inline comments:
Review comments at @apps/www/next.config.mjs:
- Around line 248-261: Move applicationKey from
webpack.unstable_sentryWebpackPluginOptions to the top-level Sentry options
alongside org and project, while preserving webpack.treeshake.removeDebugLogging
and removing the obsolete nested applicationKey configuration.

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apps/www/proxy.ts

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github-actions · 2026-10-20T10:05:58Z

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

…ize limit Reverts the App Router move of /api/ai/docs and replaces exact token counting in ai-commands with an estimate. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

## Problem The docs site (`apps/docs`) is still on Next.js 15, which is close to the end of its support window under the [Next.js support policy](https://nextjs.org/support-policy). Resolves [DOCS-1485](https://linear.app/supabase/issue/DOCS-1485/upgrade-the-docs-site-to-nextjs-16). ## Solution Upgrades `apps/docs` to Next.js 16.3.6. The scope is limited to what Next.js 16 requires, so existing routes, redirects, and responses stay the same. - **Dependencies:** `next` uses the workspace catalog, and `@next/mdx` and `@next/bundle-analyzer` are bumped to 16.3.6. - **Webpack:** `dev` and `build` run with `--webpack`, because the docs config loads `.include`, `.toml`, and YAML files through webpack, and the MDX remark plugins have non-serializable options. - **Proxy:** `middleware.ts` is renamed to `proxy.ts`. - **Cache revalidation:** `revalidateTag` is called with `{ expire: 0 }` to keep immediate expiration. - **Images:** `images.localPatterns` allows guide images with `?v=N` cache-busting query strings. Without it, those pages return 500. - **Scroll behavior:** `data-scroll-behavior="smooth"` on `<html>` keeps route changes jumping to the top instantly. - **Config:** the `eslint` key is removed from `next.config.mjs`, and Sentry options use their new names. - **`next-env.d.ts`:** gitignored, like in the other apps, because Next.js 16 regenerates it differently for `dev` and `typegen`. ### Dependency on the marketing site upgrade The docs chat edge function (`/api/ai/docs`) stays under the Vercel Edge Function size limit because #52001 ([FE-4673](https://linear.app/supabase/issue/FE-4673/upgrade-the-marketing-site-to-nextjs-16)) removed `js-tiktoken` from `ai-commands`. This branch is based on `master` with that change. ## Known limitations - `proxy.ts` runs on the Node.js runtime instead of edge. - `nuqs` v1 doesn't declare support for Next.js 15 or 16. The troubleshooting filters work on Next.js 16, but the dependency is outside its supported range. - `next/legacy/image` and `unstable_cache` are deprecated but still supported. - Tabs opened before the deploy keep running the Next.js 15 client. On their next client-side navigation, the router loads the page in full instead. Docs pages are prerendered, so these requests don't reach the renderer or report errors to Sentry. ## Review instructions 1. Run `pnpm --filter=docs typecheck` and `pnpm --filter=docs test:local`. 2. Run `pnpm dev:docs` and open a guide, a client library reference page, and `/guides/troubleshooting` with a filter applied. 3. Check the Vercel preview against production docs: every sitemap URL returns the same status code, and redirects, `.md` responses, search, and the AI chat behave the same. A local production build already matches production for the following: - All 2,564 sitemap URLs - The redirects in `next.config.mjs`, except where a www redirect handles the path first - `.md` negotiation, including the 406 response - Reference rewrites, including bot requests Search and the AI chat need the preview, because they depend on production data and keys. 4. Confirm the preview build has enough memory. Locally, `next build` peaked at about 4 GB. ## Future work - Upgrade `nuqs` to v2. - Replace `next/legacy/image` with `next/image`. - Replace `unstable_cache` with `use cache`. ## Checklist Check all before review: - [ ] I have read [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) - [ ] If I wrote a new docs topic or edited an existing topic, I used the `/write-the-docs` or `/edit-the-docs` skill, which applies the docs [style guide](https://github.com/supabase/supabase/tree/master/apps/docs/style-guide)

feat(www): upgrade to Next.js 16

fdbbc0e

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

ivasilov requested a review from a team as a code owner October 20, 2026 09:52

coderabbitai Bot reviewed Oct 20, 2026

View reviewed changes

Comment thread apps/www/next.config.mjs

ivasilov and others added 5 commits October 20, 2026 12:12

fix(www): exclude .next/lock from output file tracing

0b863af

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

refactor(www): move /api/ai/docs to the App Router

175fc66

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

chore(www): refresh customers-rss.xml

7fdf976

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

fix(www): drop js-tiktoken from the docs chat route to fit the edge s…

eae3198

…ize limit Reverts the App Router move of /api/ai/docs and replaces exact token counting in ai-commands with an estimate. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

fix(www): use top-level Sentry applicationKey option

4ab5ff2

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

awaseem approved these changes Oct 20, 2026

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charislam approved these changes Oct 20, 2026

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kemaldotearth approved these changes Oct 20, 2026

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alexisintech mentioned this pull request Oct 20, 2026

feat(docs): upgrade to Next.js 16 #52045

Merged

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ivasilov merged commit ced4ff8 into master Oct 21, 2026
49 checks passed

ivasilov deleted the ivanvasilov/fe-4673-upgrade-the-marketing-site-to-nextjs-16 branch October 21, 2026 10:28

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feat(www): upgrade to Next.js 16 - #52001

feat(www): upgrade to Next.js 16#52001
ivasilov merged 6 commits into
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ivasilov commented Oct 20, 2026

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