SAML not working in any Matrix client.

[tylnesh]

Steps to reproduce

I've been trying to get on the ubuntu.com matrix instance. I've followed the instructions written here: https://discourse.ubuntu.com/t/synchronous-communication-with-matrix/39535

Outcome

SAML always fails with an error message in this picture

Client information

Element Desktop:
1.11.48:
Ubuntu 23.10 - snap

FluffyChat:
rc1.15.1:
Ubuntu 23.10 - snap

Element Web:
Ubuntu 23.10 - Firefox webapp

FluffyChat:
1.15.0:
iOS 17

Element Messenger:
1.11.4:
iOS 17

[nathanhaines]

I have the same problem.

I do also note that the post references chat.ubuntu.com but Synapse appears to be running at chat-server.ubuntu.com, in case this is a canonical URL issue...

[fenris]

i'm having the same prob as @tylnesh

[ilvipero]

Nhaines, Tylnesh, and Fenris are all members of the Launchpad group Ubuntu Members, therefore should be allowed to use SSO on the ubuntu.com Matrix instance during this stage of testing.

[merkata]

Thanks @ilvipero , @amandahla can you have a look please?

[tylnesh]

There may be some mismatch in the URL that the SAML expects. We're using ubuntu.com as the server URL for the matrix client, but Ubuntu One mentions chat-server.ubuntu.com as the requested service. Just to be sure, I've tried using that URL as well, but still no progress.

[ilvipero]

@tylnesh @fenris @nathanhaines We changed settings to fix the issue, could you please try and login with SAML again and share the result?

[fenris]

\o/ finally, it's working

[merkata]

Awesome, thanks for the confirmation @fenris , closing.