Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/eca3aeb352c964bdb28b8e191d6326370245e03f/fs/sandbox 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/fs/sandbox
Simon Glass 7eb2c8d573 sandbox: fs: Add support for saving files to host filesystem 12 years ago
..
Makefile
sandboxfs.c