You can report bugs and request features on freeCodeCamp.org's main repository.
The build directory gets deployed and is made available at the root of the top-level domain.
Examples:
-
/build/ => https://cdn.freecodecamp.org/ -
/build/asset/camperbot.jpg => https://cdn.freecodecamp.org/asset/camperbot.jpg
Your pull-request should be made to the build directory and should already have pre-compiled, compressed and minified assets as needed.