Title: Feature Request/Cache 404 Errors
Last modified: August 19, 2016

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# Feature Request/Cache 404 Errors

 *  [John Keegan](https://wordpress.org/support/users/jkeegan2/)
 * (@jkeegan2)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/feature-requestcache-404-errors/)
 * We just had a situation where a site was sent a large amount of traffic to an
   invalid URL.
 * Unfortunately the system did not fare so well, since unlike legitimate traffic
   which can be wp-cached and wp-super-cached, 404s must go through the entire app
   layer and get generated dynamically. So it would be nice to have an option to
   cache (especially supercache) 404 errors for a specific period, assuming of course
   the proper 404 header could be sent (might be more problematic).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * (@donncha)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/feature-requestcache-404-errors/#post-676622)
 * There’s an “is_404()” check in wp-cache-phase2.php. If you remove that then the
   plugin should cache those pages.
 *  Thread Starter [John Keegan](https://wordpress.org/support/users/jkeegan2/)
 * (@jkeegan2)
 * [18 years, 5 months ago](https://wordpress.org/support/topic/feature-requestcache-404-errors/#post-676713)
 * Yes, I tried that actually but it appears that when you do that the 404 page 
   gets cached but the actual response header that gets sent out when the cached
   page is retrieved is 200…
 * So it would be an acceptable temporary measure but not something I’d want to 
   do permanently (i.e. send all my 404s with 200 response headers). It would be
   nice if that functionality was built in so that the 404s were actually returned
   with 404 response headers.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Feature Request/Cache 404 Errors’ is closed to new replies.

 * 2 replies
 * 2 participants
 * Last reply from: [John Keegan](https://wordpress.org/support/users/jkeegan2/)
 * Last activity: [18 years, 5 months ago](https://wordpress.org/support/topic/feature-requestcache-404-errors/#post-676713)
 * Status: not resolved

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