304 Not Modified client redirection response code indicates that there is no need to retransmit the requested resources. It is an implicit redirection to a cached resource. This happens when the request method is a safe method, such as
HEAD, or when the request is conditional and uses an
If-None-Match or an
OK response would have included the headers
Note: Many developer tools' network panels of browsers create extraneous requests leading to
304 responses, so that access to the local cache is visible to developers.