Details

How long a CDN or browser may cache a ResourceLoader HTTP response. Maximum time in seconds. Used for the 'max-age' and 's-maxage' Cache-Control headers.

Default value

$wgResourceLoaderMaxage = [];

$wgResourceLoaderMaxage = [
	'versioned' => 30 * 24 * 60 * 60, // <translate nowrap><!--T:12--> 30 days</translate>
	'unversioned' => 5 * 60 // <translate nowrap><!--T:13--> 5 minutes</translate>
];

$wgResourceLoaderMaxage = array(
	'versioned' => array(
		// <translate nowrap><!--T:5--> Squid/Varnish but also any other public proxy cache between the client and MediaWiki</translate>
		'server' => 30 * 24 * 60 * 60, // 30 days
		// <translate nowrap><!--T:6--> On the client side (e.g. in the browser cache).</translate>
		'client' => 30 * 24 * 60 * 60, // 30 days
	),
	'unversioned' => array(
		'server' => 5 * 60, // <translate nowrap><!--T:7--> 5 minutes</translate>
		'client' => 5 * 60, // <translate nowrap><!--T:8--> 5 minutes</translate>
	),
);

To simplify troubleshooting, here is a known exception related to this old syntax:

/load.php?lang=it&modules=skins.vector.styles.legacy%2Cresponsive&only=styles&skin=vector   Error from line 1073 of includes/resourceloader/ResourceLoader.php: Unsupported operand types
#0 includes/resourceloader/ResourceLoader.php(891): ResourceLoader->tryRespondFromFileCache(ResourceFileCache, ResourceLoaderContext, string)
#1 load.php(51): ResourceLoader->respond(ResourceLoaderContext)
#2 load.php(38): wfLoadMain()
#3 {main}

To fix this issue just migrate to the new syntax without the "server" and "client" distinction.

See also

• ResourceLoader
• $wgResourceModules - Register modules that can later be loaded on a page
• $wgResourceModuleSkinStyles - Register skin-provided stylesheets to add to an existing ResourceLoader module
• $wgResourceLoaderDebug - Configure the default debug mode for MediaWiki.
• Internal configuration settings: $wgExtensionAssetsPath , $wgResourceLoaderMaxage
• ResourceLoaderRegisterModules hook
• Developing with ResourceLoader – Learn how to use ResourceLoader in MediaWiki