The user-supplied glob to match against the request URL path.
The value to put in the HTTP location header of the response. The location can contain capture group values from the pattern using a : prefix to identify the segment and an optional * to capture the rest of the URL. For example:
The user-supplied RE2 regular expression to match against the request URL path.
The status HTTP code to return in the response. It must be a valid 3xx status code.