I\'m recently playing with bootsrap3. I compiled it from sources and included distr js and css to my project. The thing is, I see in GH dev tools, that it\'s trying to get .
If you don't have the correct .map file and you don't want to edit lines in bootstrap.css you can create a dummy .map file.
In my case I was seeing the error:
GET /bootstrap.css.map not found.
So I created an empty bootstrap.css.map in the /public directory and the error stopped.