Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/951860634fdb557bbb58e0f99215391bc0c29779/common/spl 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/common/spl
Masahiro Yamada c13bb16757 spl: nand: read only in the size of image_header on the first access 11 years ago
..
Makefile
spl.c
spl_fat.c
spl_mmc.c
spl_nand.c
spl_net.c
spl_nor.c
spl_onenand.c
spl_sata.c
spl_usb.c
spl_ymodem.c