Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/OpenAudio_ArduinoLibrary/src/commit/103614d0c9989a565bfe55188f3db5f695a49f03/docs/jquery/js You should set ROOT_URL correctly, otherwise the web may not work correctly.