Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/commits/commit/cc4bd47f4f8d11af50ab56caa9ece29ac13fc5c3/tools/easylogo/linux_logo.tga
You should set ROOT_URL correctly, otherwise the web may not work correctly.
wdenk