Title: Error 303
Last modified: June 27, 2018

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# Error 303

 *  [agepcom](https://wordpress.org/support/users/agepcom/)
 * (@agepcom)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/error-303-2/)
 * I got an error 303 while trying to get the file from the email. Do you know if
   this plugin is compatible with http/2 ?

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Evert](https://wordpress.org/support/users/evertruisch/)
 * (@evertruisch)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/error-303-2/#post-10440103)
 * I can answer that question for you. (Probably the maker will not give you an 
   answer)
    Yes, that should not be a problem, installation and operation are fine
   for me.
 *  Thread Starter [agepcom](https://wordpress.org/support/users/agepcom/)
 * (@agepcom)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/error-303-2/#post-10440213)
 * well I found it’s a problem with caching plugin (WPRocket)… I tried to exclude
   plugin from caching. But the problem is maybe, as the plugin uses the mysiteurl.
   com/?ed=cron&guid=etcetc instead of a custom URL, and as the root url uses cache,
   something does not work anymore. I could set ‘no cache’ for a custom URL eventually,
   but for root url, it’s annoying…
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
 *  Thread Starter [agepcom](https://wordpress.org/support/users/agepcom/)
 * (@agepcom)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/error-303-2/#post-10440532)
 * I found another error 303 on my website, and this on http2 (url?) size tweaks:
   [https://stackoverflow.com/questions/49927327/website-ok-on-firefox-but-not-on-safari-kcferrordomaincfnetwork-error-303-neit](https://stackoverflow.com/questions/49927327/website-ok-on-firefox-but-not-on-safari-kcferrordomaincfnetwork-error-303-neit)
   
   http2_max_field_size 16k; http2_max_header_size 128k; Is it possible that the
   guid would be too long ?… specially in a Get or Post request… 119 characters (
   adding my website url) + maybe some characters added by the cache plugin… I didn’t
   have these problems on a no-http2 server…
 * kCFErrorDomainCFNetwork error 303 (kCFErrorDomainCFNetwork:303)
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
    -  This reply was modified 7 years, 11 months ago by [agepcom](https://wordpress.org/support/users/agepcom/).
 *  [Evert](https://wordpress.org/support/users/evertruisch/)
 * (@evertruisch)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/error-303-2/#post-10441607)
 * I use
    WP Super Cache and I have nothing special to set. It could well be that
   the combination can vary per host. But perhaps it is purely due to the used cache
   plugin. Perhaps PHP version issue?

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Error 303’ is closed to new replies.

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 * 4 replies
 * 2 participants
 * Last reply from: [Evert](https://wordpress.org/support/users/evertruisch/)
 * Last activity: [7 years, 11 months ago](https://wordpress.org/support/topic/error-303-2/#post-10441607)
 * Status: not resolved