It's currently pointing to https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png What about replacing it with a pure CSS solution? See https://github.com/simonwhitaker/github-fork-ribbon-css
It's currently pointing to https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png
What about replacing it with a pure CSS solution? See https://github.com/simonwhitaker/github-fork-ribbon-css