Edit file File name : BrowserCache_ConfigLabels.php Content :<?php namespace W3TC; class BrowserCache_ConfigLabels { public function config_labels( $config_labels ) { return array_merge( $config_labels, array( 'browsercache.enabled' => __( 'Browser Cache:', 'w3-total-cache' ), 'browsercache.replace.exceptions' => __( 'Prevent caching exception list:', 'w3-total-cache' ), 'browsercache.no404wp' => __( 'Do not process 404 errors for static objects with WordPress', 'w3-total-cache' ), 'browsercache.no404wp.exceptions' => __( '404 error exception list:', 'w3-total-cache' ), 'browsercache.cssjs.last_modified' => __( 'Set Last-Modified header', 'w3-total-cache' ), 'browsercache.cssjs.expires' => __( 'Set expires header', 'w3-total-cache' ), 'browsercache.cssjs.lifetime' => __( 'Expires header lifetime:', 'w3-total-cache' ), 'browsercache.cssjs.cache.control' => __( 'Set cache control header', 'w3-total-cache' ), 'browsercache.cssjs.cache.policy' => __( 'Cache Control policy:', 'w3-total-cache' ), 'browsercache.cssjs.etag' => __( 'Set entity tag (eTag)', 'w3-total-cache' ), 'browsercache.cssjs.w3tc' => __( 'Set W3 Total Cache header', 'w3-total-cache' ), 'browsercache.cssjs.compression' => __( 'Enable <acronym title="Hypertext Transfer Protocol">HTTP</acronym> (gzip) compression', 'w3-total-cache' ), 'browsercache.cssjs.replace' => __( 'Prevent caching of objects after settings change', 'w3-total-cache' ), 'browsercache.cssjs.nocookies' => __( 'Disable cookies for static files', 'w3-total-cache' ), 'browsercache.html.last_modified' => __( 'Set Last-Modified header', 'w3-total-cache' ), 'browsercache.html.expires' => __( 'Set expires header', 'w3-total-cache' ), 'browsercache.html.lifetime' => __( 'Expires header lifetime:', 'w3-total-cache' ), 'browsercache.html.cache.control' => __( 'Set cache control header', 'w3-total-cache' ), 'browsercache.html.cache.policy' => __( 'Cache Control policy:', 'w3-total-cache' ), 'browsercache.html.etag' => __( 'Set entity tag (ETag)', 'w3-total-cache' ), 'browsercache.html.w3tc' => __( 'Set W3 Total Cache header', 'w3-total-cache' ), 'browsercache.html.compression' => __( 'Enable <acronym title="Hypertext Transfer Protocol">HTTP</acronym> (gzip) compression', 'w3-total-cache' ), 'browsercache.other.last_modified' => __( 'Set Last-Modified header', 'w3-total-cache' ), 'browsercache.other.expires' => __( 'Set expires header', 'w3-total-cache' ), 'browsercache.other.lifetime' => __( 'Expires header lifetime:', 'w3-total-cache' ), 'browsercache.other.cache.control' => __( 'Set cache control header', 'w3-total-cache' ), 'browsercache.other.cache.policy' => __( 'Cache Control policy:', 'w3-total-cache' ), 'browsercache.other.etag' => __( 'Set entity tag (ETag)', 'w3-total-cache' ), 'browsercache.other.w3tc' => __( 'Set W3 Total Cache header', 'w3-total-cache' ), 'browsercache.other.compression' => __( 'Enable <acronym title="Hypertext Transfer Protocol">HTTP</acronym> (gzip) compression</label>', 'w3-total-cache' ), 'browsercache.other.replace' => __( 'Prevent caching of objects after settings change', 'w3-total-cache' ), 'browsercache.other.nocookies' => __( 'Disable cookies for static files', 'w3-total-cache' ), 'browsercache.security.session.cookie_httponly' => __( 'Access session cookies through the <acronym title="Hypertext Transfer Protocol">HTTP</acronym> only:', 'w3-total-cache' ), 'browsercache.security.session.cookie_secure' => __( 'Send session cookies only to secure connections:', 'w3-total-cache' ), 'browsercache.security.session.use_only_cookies' => __( 'Use cookies to store session IDs:', 'w3-total-cache' ), 'browsercache.hsts' => __( '<acronym title="Hypertext Transfer Protocol">HTTP</acronym> Strict Transport Security policy', 'w3-total-cache' ), 'browsercache.security.hsts.directive' => __( 'Directive:', 'w3-total-cache' ), 'browsercache.security.xfo' => __( 'X-Frame-Options', 'w3-total-cache' ), 'browsercache.security.xfo.directive' => __( 'Directive:', 'w3-total-cache' ), 'browsercache.security.xss' => __( 'X-XSS-Protection', 'w3-total-cache' ), 'browsercache.security.xss.directive' => __( 'Directive:', 'w3-total-cache' ), 'browsercache.security.xcto' => __( 'X-Content-Type-Options', 'w3-total-cache' ), 'browsercache.security.pkp' => __( '<acronym title="Hypertext Transfer Protocol">HTTP</acronym> Public Key Pinning', 'w3-total-cache' ), 'browsercache.security.pkp.pin' => __( 'Public Key:', 'w3-total-cache' ), 'browsercache.security.pkp.pin.backup' => __( 'Public Key (Backup):', 'w3-total-cache' ), 'browsercache.security.pkp.extra' => __( 'Extra Parameters:', 'w3-total-cache' ), 'browsercache.security.pkp.report.url' => __( 'Report <acronym title="Uniform Resource Locator">URL</acronym>:', 'w3-total-cache' ), 'browsercache.security.pkp.report.only' => __( 'Report Mode Only:', 'w3-total-cache' ), 'browsercache.security.referrer.policy' => __( 'Referrer Policy', 'w3-total-cache' ), 'browsercache.security.referrer.policy.directive' => __( 'Directive:', 'w3-total-cache' ), 'browsercache.security.csp' => __( 'Content Security Policy', 'w3-total-cache' ), 'browsercache.security.csp.base' => __( 'base-uri:', 'w3-total-cache' ), 'browsercache.security.csp.frame' => __( 'frame-src:', 'w3-total-cache' ), 'browsercache.security.csp.connect' => __( 'connect-src:', 'w3-total-cache' ), 'browsercache.security.csp.font' => __( 'font-src:', 'w3-total-cache' ), 'browsercache.security.csp.script' => __( 'script-src:', 'w3-total-cache' ), 'browsercache.security.csp.style' => __( 'style-src:', 'w3-total-cache' ), 'browsercache.security.csp.img' => __( 'img-src:', 'w3-total-cache' ), 'browsercache.security.csp.media' => __( 'media-src:', 'w3-total-cache' ), 'browsercache.security.csp.object' => __( 'object-src:', 'w3-total-cache' ), 'browsercache.security.csp.plugin' => __( 'plugin-types:', 'w3-total-cache' ), 'browsercache.security.csp.form' => __( 'form-action:', 'w3-total-cache' ), 'browsercache.security.csp.frame.ancestors' => __( 'frame-ancestors:', 'w3-total-cache' ), 'browsercache.security.csp.sandbox' => __( 'sandbox:', 'w3-total-cache' ), 'browsercache.security.csp.default' => __( 'default-src:', 'w3-total-cache' ) ) ); } } Save