Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/7e0c77a2b80e4ffd398cffc7ecd407ddaa2a1cad/board/gumstix 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/board/gumstix
Masahiro Yamada d648964fc2 kconfig: remove unneeded dependency on !SPL_BUILD 10 years ago
..
duovero kconfig: remove redundant "string" type in arch and board Kconfigs 11 years ago
pepper kconfig: remove unneeded dependency on !SPL_BUILD 10 years ago