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/465672a46c1890fad72bf83ee94e673d23e384c8/docs/jquery/js You should set ROOT_URL correctly, otherwise the web may not work correctly.