Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/blame/commit/fc69d472621b5c7513bcb8b4e1fe58ca8f5e035a/configs/T2080RDB_SRIO_PCIE_BOOT_defconfig
You should set ROOT_URL correctly, otherwise the web may not work correctly.