cache_javascript_headers() │ WP 2.1.0

Sets headers for the Javascript file and caches it for 10 days.

The function is convenient for creating a dynamic Javascript file in PHP. It can be called to set the necessary headers for such a file (see the function code).

No Hooks.

Returns

null. Returns nothing.

Usage

cache_javascript_headers();

Examples

#1 The function sets the following headings:

header( "Content-Type: text/javascript; charset=UTF-8" );
header( "Vary: Accept-Encoding" );
header( "Expires: Wed, 27 Mar 2013 02:47:29 GMT" );

Changelog

Since 2.1.0

Introduced.

`cache_javascript_headers() cache javascript headers` code ^{WP 6.9.1}

wp-includes/functions.php

function cache_javascript_headers() {
	$expires_offset = 10 * DAY_IN_SECONDS;

	header( 'Content-Type: text/javascript; charset=' . get_bloginfo( 'charset' ) );
	header( 'Vary: Accept-Encoding' ); // Handle proxies.
	header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + $expires_offset ) . ' GMT' );
}