27 lines
734 B
PHP
27 lines
734 B
PHP
<?php declare(strict_types = 1);
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namespace MailPoet\Util;
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if (!defined('ABSPATH')) exit;
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use MailPoet\WP\Functions as WPFunctions;
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class Headers {
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public static function setNoCacheHeaders(): void {
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$wp = WPFunctions::get();
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if ($wp->headersSent()) {
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return;
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}
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// Set default no-cache headers:
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header('Cache-Control: no-cache, no-store, must-revalidate'); // HTTP 1.1+
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header('Pragma: no-cache'); // HTTP 1.0
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header('Expires: 0'); // proxies
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header('X-Cache-Enabled: False'); // SG Optimizer on SiteGround
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header('X-LiteSpeed-Cache-Control: no-cache'); // LiteSpeed server
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// Use WP-native nocache_headers(). This can override the defaults above.
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$wp->nocacheHeaders();
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}
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}
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