A better "site not available" page

[fefrei (Felix Freiberger)]

We now have instructions for this:

Add an offline page to display when Discourse is rebuilding or starting up

This guide is intended for advanced users, who are already using nginx outside the docker container. By following this guide you make your setup more complicated and will loose some speed benefits like HTTP2 if you’re not running Ubuntu 16.04 or later. Proceed with caution! When Discourse is rebuilding or starting up, your users will usually either see an error message from their browser… [image] …or a not-so-nice 502 error message from Nginx: [image] If you’re a perfectionist l…