BUG_Failed to get accessToken, Network request failed

[kjakobczyk]

Describe the bug
I'm trying to use Abacus with Firefly III server v.5.7.9 running on Docker via docker-compose.

To Reproduce
Steps to reproduce the behavior:

1. Create new OAuth token in Firefly III
2. Open Abacus for Firefly III
3. Fill the backend URL and Client ID in Abacus for Firefly III leaving client secret empty
4. Click on "Sign in" button
5. Log in to Firefly III
6. Click on "Authorize" in Firefly III
7. You see the error message saying that "Something went wrong" with description "failed to get accessToken, Network request failed.

Expected behavior
After clicking on "Authorize" in Firefly III I'd expect the application to log me in and allow to insert information to my Firefly III instance through Abacus for Firefly.

Screenshots

Smartphone (please complete the following information):

• Device: iPhone 13
• OS: iOS 16
• Firefly III v5.7.9 running in Docker behind Apache2 reverse proxy
• Latest Abacus for Firefly III

[victorbalssa]

Do you have any errors after step 6?

What happen after step 6? safari close the current connexion and you get the red notification?
If that's the case, can you look at your Firefly III logs and display what errors you may have?