Issue

GitHub reports 404 when attempting to post a comment.

Cause

It's common to receive a 404 occasionally in the GitHub logs, though there’s very little we can do to improve this behavior since we're already adding a delay of 3s before attempting to post.

Solution

If you're always receiving a 404 however, perhaps something isn't configured quite right? Make sure you've configured a: gh-token that belongs to a user that has access (permissions) to the repository.