Revert temporary fix for negative cache time

lib/tools/phantomas/custom_modules/modules/cachYLT/cachYLT.js

@@ -1,79 +0,0 @@
-/**
- * Analyzes HTTP caching headers
- *
- * @see https://developers.google.com/speed/docs/best-practices/caching
- */
-
-exports.version = '0.2.a';
-
-exports.module = function(phantomas) {
-    'use strict';
-    
-    var cacheControlRegExp = /max-age=(\d+)/;
-
-    function getCachingTime(url, headers) {
-        // false means "no caching"
-        var ttl = false,
-            headerName,
-            now = new Date(),
-            headerDate;
-
-        for (headerName in headers) {
-            var value = headers[headerName];
-
-            switch (headerName.toLowerCase()) {
-                // parse max-age=...
-                //
-                // max-age=2592000
-                // public, max-age=300, must-revalidate
-                case 'cache-control':
-                    var matches = value.match(cacheControlRegExp);
-
-                    if (matches) {
-                        ttl = parseInt(matches[1], 10);
-                    }
-                    break;
-
-                    // catch Expires and Pragma headers
-                case 'expires':
-                case 'pragma':
-                    // and Varnish specific headers
-                case 'x-pass-expires':
-                case 'x-pass-cache-control':
-                    phantomas.incrMetric('oldCachingHeaders'); // @desc number of responses with old, HTTP 1.0 caching headers (Expires and Pragma)
-                    phantomas.addOffender('oldCachingHeaders', url + ' - ' + headerName + ': ' + value);
-                    headerDate = Date.parse(value);
-                    if (headerDate) ttl = Math.round((headerDate - now) / 1000);
-                    break;
-            }
-        }
-
-        //console.log(JSON.stringify(headers)); console.log("TTL: " + ttl + ' s');
-
-        return ttl;
-    }
-
-    phantomas.setMetric('cachingNotSpecified'); // @desc number of responses with no caching header sent (no Cache-Control header)
-    phantomas.setMetric('cachingTooShort'); // @desc number of responses with too short (less than a week) caching time
-    phantomas.setMetric('cachingDisabled'); // @desc number of responses with caching disabled (max-age=0)
-
-    phantomas.setMetric('oldCachingHeaders');
-
-    phantomas.on('recv', function(entry, res) {
-        var ttl = getCachingTime(entry.url, entry.headers);
-
-        // static assets
-        if (entry.isImage || entry.isJS || entry.isCSS) {
-            if (ttl === false) {
-                phantomas.incrMetric('cachingNotSpecified');
-                phantomas.addOffender('cachingNotSpecified', entry.url);
-            } else if (ttl <= 0) {
-                phantomas.incrMetric('cachingDisabled');
-                phantomas.addOffender('cachingDisabled', entry.url);
-            } else if (ttl < 7 * 86400) {
-                phantomas.incrMetric('cachingTooShort');
-                phantomas.addOffender('cachingTooShort', entry.url + ' cached for ' + ttl + ' s');
-            }
-        }
-    });
-};

lib/tools/phantomas/phantomasWrapper.js

@@ -35,7 +35,6 @@ var PhantomasWrapper = function() {
             'analyze-css': true,
             'skip-modules': [
                 'blockDomains', // not needed
-                'caching', // overriden
                 'domMutations', // not compatible with webkit
                 'domQueries', // overriden
                 'eventListeners', // overridden