Broken Steam Login on Opera GX

On our forum (, the Steam Login page returns a 502 Service Unavailable error using only Opera GX.

I’ve also tested this on Firefox, Chrome and Edge, all of which have worked fine. Please investigate this problem.

Hello, I’m one of the admins of the forum linked in this post and @emosewaj is one of our moderators, if you folks at discourse need more details like specific settings let me know.

Here is a few things:

Version: 3.3.0.beta1 (979df9ab7a)

Steam Authentication 2.0.1 6104eea

OperaGX is not on our list of supported browsers, tagging this as pr-welcome.