Function realCheck

src/background.js:3461–3505

(r)

        };

        var realCheck = function(r) {
            var details = {
                method: 'GET',
                retries: _retries,
                url: determineSourceURL(r.script, true),
            };

            running++;
            (function() {
                var obj = { tabid: tabid, r: r};
                var durl = determineSourceURL(obj.r.script)
                    var cb = function(req) {
                    running--;
                    if (req.readyState == 4 && req.status == 200) {
                        if (V) console.log(durl);

                        var updateHash = function() {
                            // call only if local and remove script version do match
                            if (obj.r.meta) {
                                if (V || UV) console.log("bg: update hash of script " + r.script.name + " to " + obj.r.meta[cUSOHASH]);
                                obj.r.script.hash = obj.r.meta[cUSOHASH];
                                storeScript(obj.r.script.name, obj.r.script, false);
                            }
                        };

                        var ret = ScriptUpdater.srcCmp(req.responseText);
                        if (ret == eNEWER || r.hash_different) {
                            found++;
                            if (callback) callback(true, { name: obj.r.script.name,
                                                           url: durl,
                                                           code: req.responseText,
                                                           newhash: obj.r.meta[cUSOHASH] });
                            return;
                        } else if (ret == eEQUAL) {
                            if (V || UV) console.log("bg: found same version @ " + durl);
                            updateHash();
                        }
                    } else {
                        console.log(I18N.getMessage("UpdateCheck_of_0name0_Url_0url0_failed_", [ obj.r.script.name, durl ]));
                    }
                    checkNoUpdateNotification();
                };
                xmlhttpRequest(details, cb);
            })();
        };

        var metaCheck = function(r) {
            running++;