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Manual:$wgUseCdn

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Squid: $wgUseCdn
Enable/disable page view caching.
Introduced in version:1.34.0 (Gerrit change 387877; git #f9f8dff4)
Removed in version:still in use
Allowed values:(boolean)
Default value:false

DetailsEdit

Enable/disable page view caching. Cdn configuration causes the following changes in behaviour:

  • The Cache-Control header is changed to allow the cache proxy to blindly cache content for a predetermined period of time (configured by $wgCdnMaxAge ).
  • The Last-Modified header is artificially shortened to ensure the cache proxy will not renew outdated HTML beyond a certain age. The Last-Modified date will never be older than $wgCdnMaxAge . This will allow to refresh the cached copy in case there were changes to footer icons, sidebar, skin update, and other configuration or skin-level changes not tracked by the wiki page itself.
  • Purges are sent to ensure content edited by users remains up to date immediately.

The list of Cdn servers to be purged on update must be stored in $wgCdnServers .

Sending purge requests requires the sockets PHP extension.