This is a manual reproduction for this issue in the Remix repository which recreates the issue in a manual React SSR setup without using Remix.
The issue appears to boil down to a React 17 problem with how to handle hydrate calls on document when there is a top-level ErrorBoundary outside of the React-rendered <html> element.
The issue is fixed when using React 18.
Warning
Please note that the bug this repo is exposing is an infinite loop, so running the Rewact 17 example will put your browser into an infinite loop and you will need to kill the browser tab. Please proceed with caution 😈.
To run the examples, cd into react-17 or react-18 and run the following on node 18 or later:
npm install
node server.mjs
Then load http://localhost:3000