I tried to enable HTTP/2 for my Next.js project, but got a 504 error after redeploying. Initially, I thought the issue was related to my codebase or project setup, but then I discovered that HTTP/2 doesn’t seem to work on the App Platform at all. Steps to reproduce: Start creating a new app on App Platform and choose “Sample app” Select any language or web framework (I tested with Node.js and Go sample apps) Choose a server size and deploy the app Open the deployed app to confirm it’s working Enable HTTP/2 support in the App Spec and wait for the redeployment Open the app again — you’ll get a 504 Gateway Timeout error

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Question

HTTP/2 Not Working on App Platform – 504 Error

Posted on April 15, 2025
Networking App Platform
Asked by LittleAquamarineAngler

I tried to enable HTTP/2 for my Next.js project, but got a 504 error after redeploying. Initially, I thought the issue was related to my codebase or project setup, but then I discovered that HTTP/2 doesn’t seem to work on the App Platform at all.

Steps to reproduce:

Start creating a new app on App Platform and choose “Sample app”
Select any language or web framework (I tested with Node.js and Go sample apps)
Choose a server size and deploy the app
Open the deployed app to confirm it’s working
Enable HTTP/2 support in the App Spec and wait for the redeployment
Open the app again — you’ll get a 504 Gateway Timeout error

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