github.issue.create is giving me a 404 (FIXED: Removing path prefix fixes it)

[davidfurlong]

{ message: '{"message":"Not Found","documentation_url":"https://developer.github.com/v3"}',
code: 404 }

EDIT: Removing path prefix seemed to work. Annoying.

[robneville73]

Can you elaborate on "removing path prefix"? I didn't define one (even tried setting it null) and I'm still getting this issue.