How to prevent HTTP request that returns 304?
If you return to the page via a link or entering the URL into the URL bar in a new tab, then no revalidation is done (i.e. no requests are made). In Chrome, if you refresh the page by selecting the URL bar and pressing Enter, the page itself revalidates but no other resources do. In Firefox, neither the page nor resources revalidate.
When does the server return a 304 to the browser?
Its HTTP response header has an ETag, Cache-Control: public, and Expires: Tue, 19 Jan 2038 03:14:07 GMT. The server is returning a 304 after the browser cache has been primed. My question is, why is the browser even checking with the server and getting a 304 in the first place?
What does 304 not modified mean in http?
304 Not Modified: What It Is and How to Fix It December 7, 2017 HTTP Errors A 304 Not Modified message is an HTTP response status code indicating that the requested resource has not been modified since the previous transmission, so there is no need to retransmit the requested resource to the client.
Why do I keep seeing request and 304 in my browser?
So if you want to change the browsers’ caching behaviour, you’re out of luck. However, things might not be as bad as you think. You’re probably only be seeing a request and 304 because you’re refreshing the page in your browser when testing. Browsers handle cached resources differently depending upon how the request for them was triggered.
Why do I get a 304 code in Apache?
The most likely culprit for producing unexpected 304 codes in Apache is the mod_cache module. Thus, within the configuration file you have open look for a section that checks for the mod_cache.c file. Here’s an example from the official documentation:
How to always return code 200 with data instead of 304?
I would like to have Apache HTTPD return response code 200 with data of resource request via a GET instead of returning response code 304 with no data. Any one have an idea how to do that? This will ignore IF-Modified-Since header sent from client so you will get not 304 Not Modified response.