We’ve just gotten a new link to the internet at work. After getting online I did some quick tyre–kicking. Since we self–host our git repositories, this included making an SSH connection from an appserver back to the office. I made the usual invocation, but no dice—just ...

It took me a while to mix “maintenance mode”, CORS preflight responses, and nginx into a coherent picture. It was painful, friend. If you have the same problem I hope you read on and save yourself the trouble.

What are we dealing with here? We have a HTTP API which ...