Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/2b07f6859ad17b74ce490f371f4878add6ae5a11/drivers/dfu You should set ROOT_URL correctly, otherwise the web may not work correctly.
upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
 
 
 
 
 
 
u-boot/drivers/dfu
Stephen Warren e621c7ab9a dfu: fix 64-bit compile warnings 10 years ago
..
Kconfig
Makefile
dfu.c dfu: fix 64-bit compile warnings 10 years ago
dfu_mmc.c dfu: fix 64-bit compile warnings 10 years ago
dfu_nand.c
dfu_ram.c
dfu_sf.c