['No Accept-Encoding sent by client', 'compression is disabled because no suitable configuration was found', 'Server not configured to compress 1.0 requests', 'Server not configured to compress proxy requests', 'No compression scheme matches for this extension/Accept-Encoding', 'Unknown Error', 'Headers being sent twice for the same response', 'No Headers sent before entity body send', 'The response status code is not success', 'There is a content-encoding already present in the response', 'Server not configured to compress range requests', 'Server not configured to compress this content-Type']