React SPA deployed on CF Workers works for me (India) but doesn't for my friend (UAE)

Hi folks, I encountered a strange issue today while deploying my react spa app which works flawlessly for me, but my friend gets a generic "Failed to fetch" error (screenshot attached along). There isn't much information logged apart from that.

Before migrating to CF workers, the app was deployed to vercel and there was no issue logging from different regions.

ZeeshanOP•9/9/25, 9:42 AM

I was wondering if this has anything to do with QUIC protocol that is mentioned in the error message above.

ZeeshanOP•9/9/25, 11:22 AM

i disabled QUIC from chrome://flags/#enable-quicchrome://flags/#enable-quic

now i get different error: ERR_NAME_NOT_RESOLVEDERR_NAME_NOT_RESOLVED

ZeeshanOP•9/9/25, 11:22 AM

ZeeshanOP•9/10/25, 10:51 AM

yes, you were right. it was issue with uae network banning supabase. for now the solution is to have a proxy server.

React SPA deployed on CF Workers works for me (India) but doesn't for my friend (UAE)

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