I receive a "the String did not match the expected pattern" when trying to import from Github, however I'm following the exact pattern specified by repl.it

Here's a few things to help troubleshoot:

• my repo is set to public
• my repo URL works perfectly fine anywhere else
• I haven't had this issue before
• I've tried, to no success:

https://github.com/user/repo
http://github.com/user/repo
https://www.github.com/user/repo
github.com/user/repo