Manual:$wgResourceLoaderMaxage/en

<translate> ResourceLoader</translate>: $wgResourceLoaderMaxage
How long a CDN or browser may cache a ResourceLoader HTTP response.
<translate> Introduced in version:</translate>	1.17.0 (r73568)
<translate> Removed in version:</translate>	<translate> still in use</translate>
<translate> Allowed values:</translate>	(array)
<translate> Default value:</translate>	see below
<translate> Other settings:</translate> <translate> Alphabetical</translate> | <translate> By function</translate>

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

<td class="mw-version-versionbox" title="<translate nowrap> The latest stable version is <tvar name=1>1.41</tvar></translate>">

<translate> ≥</translate> 1.39

<translate> MediaWiki version:</translate>

$wgResourceLoaderMaxage = [];

<td class="mw-version-versionbox" title="<translate nowrap> MediaWiki <tvar name=1>1.38</tvar> is unsupported version</translate>">

1.35 – 1.38

<translate> MediaWiki versions:</translate>

$wgResourceLoaderMaxage = [
	'versioned' => 30 * 24 * 60 * 60, // 30 days
	'unversioned' => 5 * 60 // 5 minutes
];

<td class="mw-version-versionbox" title="<translate nowrap> MediaWiki <tvar name=1>1.34</tvar> is unsupported version</translate>">

1.17 – 1.34

<translate> MediaWiki versions:</translate>

$wgResourceLoaderMaxage = array(
	'versioned' => array(
		// Squid/Varnish but also any other public proxy cache between the client and MediaWiki
		'server' => 30 * 24 * 60 * 60, // 30 days
		// On the client side (e.g. in the browser cache).
		'client' => 30 * 24 * 60 * 60, // 30 days
	),
	'unversioned' => array(
		'server' => 5 * 60, // 5 minutes
		'client' => 5 * 60, // 5 minutes
	),
);

This syntax is not compatible anymore. This happened after this change: phab:T235314

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.

ResourceLoader/See also