Custom Error Pages: edge rules

BunnyCDN doesn't fully support custom error pages, but there is a workaround whereby you can redirect any user receiving a given status code to a URL of your choice, i.e. an error page.

You need to create an edge rule that redirects to URL depending on the HTTP status code. You can also use this to redirect users with invalid referer headers, like so:

Note the header value syntax carefully. Missing slashes will stop the edge rule working as expected.