GAE HTTP/3 with custom domain

[John Coonrod]

I have a site votebd2.appspot.com which is normally accessed by its custom domain votebd.org. It connects via http/3 when accessed via the appspot URL but not with votebd.org. This doesn't make sense to me - anybody know how to fix this?

[yananc]

Hi John,

Could you please provide more details about the issue? For example, what is your use case for the service and what do you observe when accessing via votebd.org? And also, are you using Cloud Load Balancing and serverless NEGS to route traffic to your app in App Engine?

[John Coonrod]

Thanks. I use the normal gae standard settings for custom domains. When I use https://gf.dev/http3-test to test, votebd.org fails but votebd2.appspot.com works.

John Coonrod, PhD | Executive Vice President | The Hunger Project

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[Shawn Wu]

The issue seem very specific impact on the case. I recommend you to file a support consult in the console, it will allow the team to have deeper looking into the project and gathering the logs.