React Daily: Preserve SSR Suspense Fallback on Re-Suspend
A single pull request addresses hydration where a permanent server-rendered Suspense fallback was deleted and remounted after a client re-suspend. Preserving that fallback avoids resetting animations and losing DOM state.
Duration: PT1M46S
Episode overview
This episode is a short developer briefing from React Daily.
It explains recent repository work in plain language.
- Show: React Daily
- Published: 2026-09-29T06:00:30Z
- Audio duration: PT1M46S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, today is Tuesday, September 29th, 2026, and this is React Daily.
There is no broader pattern in today's activity, just one focused reliability fix with direct user-interface consequences.
The work in P R 37705 addresses issue 37620, where server rendering leaves a permanent Suspense fallback in place and hydration then suspends again on a client-created promise. That includes promises tied to a timer, local storage, or an Indexed D B style lookup that only exists in the browser. In that situation,…
The proposed behavior keeps the existing fallback mounted across that client re-suspend instead of replacing it. For developers, the impact is stability of loading user interfaces. Loaders do not flicker or restart, animation progress is preserved, and any state held inside the fallback survives when nothing…
What's next to watch is review and merge of P R 37705, and whether the preservation logic stays tightly scoped to this recovery case without changing other Suspense transitions. If you have seen flickering fallbacks or lost state after hydration with client-only data, this is the fix to track.
That's it for today, thanks for listening.
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