Upgrade React from 5398b711-20250314 to fbcda19a-20250317

[vercel-release-bot]

diff facebook/[email protected]

React upstream changes

• [devtools] add filters for internal builds facebook/react#32646
• Add observer methods to fragment instances facebook/react#32619
• [bug] Fix component name for Portal and add tests facebook/react#32640
• Remove offscreen type facebook/react#32639
• [refactor] Add element type for Activity facebook/react#32499
• Partially revert #32588 facebook/react#32621
• Remove Mutation Check Around commit/measureUpdateViewTransition facebook/react#32617
• Move traverseFragmentInstanceChildren to internal ReactFiberTreeReflection facebook/react#32613
• Measure and apply names for the "new" phase facebook/react#32612
• Find Pairs and Apply View Transition Names to the Clones in the "old" Phase facebook/react#32599
• Add more phases to the ReactFiberApplyGesture facebook/react#32578
• Make xViewTransitionToHostInstances helpers reusable facebook/react#32611
• Gate flushGestureMutations and flushGestureAnimations facebook/react#32605
• Merge restoreEnterViewTransitions and restoreExitViewTransitions facebook/react#32585

[ijjk]

Failing test suites

Commit: 62ea223

pnpm test-dev test/e2e/app-dir/rsc-basic/rsc-basic.test.ts

• app dir - rsc basics > should be able to navigate between rsc routes

Expand output

● app dir - rsc basics › should be able to navigate between rsc routes

request.allHeaders: Target page, context or browser has been closed

  168 |         page.on('request', (request) => {
  169 |           requestsCount++
> 170 |           return request.allHeaders().then((headers) => {
      |                          ^
  171 |             if (
  172 |               headers['RSC'.toLowerCase()] === '1' &&
  173 |               // Prefetches also include `RSC`

  at Page.allHeaders (e2e/app-dir/rsc-basic/rsc-basic.test.ts:170:26)

Read more about building and testing Next.js in contributing.md.