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Edit File: w3_total_cache_cdn.php
<?php /** * Class Optml_w3_total_cache_cdn * * External css/js needs to be added to a list in order to be processed by w3 total cache. */ class Optml_w3_total_cache_cdn extends Optml_Abstract_Conflict { /** * Optml_Jetpack_Lazyload constructor. */ public function __construct() { $this->severity = self::SEVERITY_MEDIUM; parent::__construct(); } /** * Set the message property * * @since 2.0.6 * @access public */ public function define_message() { /* translators: 1 is new line tag, 2 is the starting anchor tag, 3 is the ending anchor tag and 4 is the domain name of Optimole */ $this->message = sprintf( __( 'It seems your are using W3 Total Cache. %1$s If you are using the CSS or JavaScript minify/combine option from %2$sW3 Total Cache -> Performance -> Minify page %3$s %1$s add this line: %4$s to Include external files/libraries and check Use regular expressions for file matching checkbox.', 'optimole-wp' ), '<br/>', '<a target="_blank" href="' . admin_url( 'admin.php?page=w3tc_minify' ) . '">', '</a>', 'https://' . Optml_Main::instance()->admin->settings->get_cdn_url() . '/*' ); } /** * Determine if conflict is applicable. * * @return bool * @since 2.0.6 * @access public */ public function is_conflict_valid() { return Optml_Main::instance()->admin->settings->get( 'cdn' ) === 'enabled' && is_plugin_active( 'w3-total-cache/w3-total-cache.php' ); } }