The server may send this optional response header to control which previously cached responses should be expired after this response.
The value of this header is a URL pattern matching responses that should be expired.
For example, to expire all responses to URLs starting with
To expire all cache entries:
If the server does not send an
X-Up-Expire-Cache header, Unpoly will expire the entire cache after a non-GET request.
You may force Unpoly to keep the cache fresh after a non-GET request: