OIDC Login Issue: "Parameter state did not match"

[QVBU]

Hi,
I'm encountering an issue with Gokapi when trying to authenticate users via OIDC using Pocket ID as the provider.
After redirect from the OIDC provider to the callback URL (/oauth-callback), Gokapi returns the error:
"Parameter state did not match".
I tested in a clean browser session (incognito mode) to rule out stale cookies or sessions, but the error persists.
I suspect Gokapi is losing or not correctly validating the state value between the initial authorization request and the callback.
I’m also using nginx as a reverse proxy in front of Gokapi — unsure if it might be interfering with cookies or headers.

OIDC Client on pocket-id

Gokapi Credentials.
Provider URL: pocket.example.com
Redirection URL: gokapi.example.com

Can anyone help?
Thanks.

[QVBU]

I also tried installing the binary files Gokapi and configuring Google OIDC, but I got the same error. However, I installed Pingvin Share and configured it with Pocket-ID, and it worked without any errors.
Find out where the problem lies :)

[QVBU]

"It's a bit ironic how something as simple as rushing can cause an issue like this. Classic case of human error — as cliché as that may be, the issue was caused by opening the /login page without the full URL.
If you check the HTML code on the error page, you’ll find this element:
<a href="./login?consent=true" class="card-link">Try again</a>

So, when accessing the full URL https://gokapi.example.com/login, the error doesn’t occur.
Thanks for developing such a great product!

[Forceu]

Great to hear you were able to resolve the problem!