I have created a python app using fastapi and therefore I have generated an openapi document http://localhost:8084/docs. I am building the app locally using docker-compose. In the beginning I was able to see the authorize button but now when I load the page http://localhost:8084/docs it just appears for a blink of an eye and then disappears. This is quite strange for me as it was working fine.

This question could be a possible duplicate but it shows that locally it works fine and there was a problem when it was deployed to Google App Engine. In my case, it was working fine locally and after deployment as well but now I cna't see that authorize button anywhere. Any ideas or experiences with this?