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Cannot login via Google OAuth in Flutter Web due to header issue

  • 0
  • Flutter
  • Auth
  • Cloud
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Venom
15 Apr, 2025, 16:59
TypeScript
Request header field User-Agent is not allowed by Access-Control-Allow-Headers.
Fetch API cannot load https://appwrite.ven0m.kr/v1/account?# due to access control checks.
Failed to load resource: Request header field User-Agent is not allowed by Access-Control-Allow-Headers.

Google OAuth was working fine until few days ago, but suddenly cannot login in iOS Safari. I searched the internet and it might be Appwrite server-side problem. (And I didn't touch anything in Netlify, too.)

  • appwrite.ven0m.kr = cloud.appwrite.io's custom domain
TL;DR
Issue: Cannot login via Google OAuth in Flutter Web due to header issue. - Google OAuth suddenly stopped working, leading to login issues in iOS Safari. - Error message: Request header field User-Agent is not allowed by Access-Control-Allow-Headers. - The problem might be related to Appwrite server-side settings. Solution: The issue might be due to the Appwrite server-side problem. Check and adjust the server-side settings to ensure proper handling of headers, specifically Access-Control-Allow-Headers, which may resolve the login problem.
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