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Incident detail

Firebase Hosting returning unexpected 431 errors on some POST requests to Firebase Functions rewrites

Firebase Hosting returning unexpected 431 errors on some POST requests to Firebase Functions rewrites

Resolved incidentMajor1 affected service

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  1. Investigating

    POST requests against Firebase Hosting Sites with rewrites to Firebase Fuctions can occasionally return unexpected 431 errors.

  2. Resolved

    The Firebase Hosting team is currently rolling out a fix. It should be available globally within a few hours.