Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/d21c3afab7152030adbe4c280acdb26a492fc162/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
Pantelis Antoniou c6631764c2 dfu: NAND specific routines for DFU operation 12 years ago
..
Makefile dfu: NAND specific routines for DFU operation 12 years ago
dfu.c dfu: NAND specific routines for DFU operation 12 years ago
dfu_mmc.c dfu: Support larger than memory transfers. 12 years ago
dfu_nand.c dfu: NAND specific routines for DFU operation 12 years ago