CORS error after few successful requests

[kartikshetty0897]

I am trying to build a sign language detection webapp using Angular and Flask Socket IO. I have set the origin to "*" but after some successful requests the, I get the error " No 'Access-Control-Allow-Origin' header is present on the requested resource.". I have attached the screenshots of the response. The cors configuration that I am using is

app = Flask(__name__)
app.config["SECRET_KEY"] = "mysecret"
socketio = SocketIO(app, cors_allowed_origins="*

Please help

[miguelgrinberg]

The CORS issue is downstream of the 400 and 500 errors that you are seeing. Do you know what those are about?

[kartikshetty0897]

No idea about the 500 response, but the 400 response is returning "Invalid Session"

[miguelgrinberg]

Well, that is the problem, not CORS.

[kartikshetty0897]

Thanks Miguel. The cors error was automatically resolved after handling the problem causing 400 response