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I tried this but it's not working :-( If I config skill to connect to my dns-adress, the request does not even come trough to flask-server. If I try URL in webbrowser I get "405 Method not allowed" what would be correct.At the end if I use curl on my rpi to call flask-server it is reached but I got "ValueError: No JSON object could be decoded". so what is wrong?
additional info: I use fritz!box 6360 cable in germany as router. using myfritz.net dns-service
actually on port 443 webinterface of fritz!box is already running! so I suggested is is outside 5000 to inside 5000