Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/dexed/src/commit/052cc04ab777b18e4c50e8ad87209eaca722ff09/JuceLibraryCode/modules/juce_gui_basics/buttons You should set ROOT_URL correctly, otherwise the web may not work correctly.