How to allow Proxy-Authorization header in request and response on GAE

[Jaromir Sima]

Hi,

is it possible to allow some restricted HTTP headers on GAE?

I need to allow 'Proxy-Authorization' header in request on our app and in response from our app.

We have a java spring boot application on GAE standard environment and according to https://cloud.google.com/appengine/docs/standard/go/reference/request-response-headers  is header 'Proxy-Authorization' always removed from request.

Can I allow this header?

Thanks

Jaromir

[David (Cloud Platform Support)]

Hello,

The “Proxy-Authorization” header is stripped for security reasons.

A possible workaround would be moving from Standard to Flexible environment. Bear in mind the different headers' limitations for App Engine Flexible if you decide to move. You could also try creating a feature request about this within our Issue Tracker. Please make sure to change the type from bug to feature request if you decide to do so.