Disable service-worker sometimes

Author: zhukov

app/js/init.js

@@ -45,16 +45,15 @@
       }
       $.getJSON('https://telegram.org/webogram_migrate').success(function(result) {
         kzVersion = result.kz_version
-        if ('K' === kzVersion || 'Z' === kzVersion) {
-          ConfigStorage.set({
-            kz_version: kzVersion
-          })
-          location.href = 'https://web.telegram.org/' + kzVersion.toLowerCase() + '/' + location.hash
-          return
-        } else {
-          bootReady.migration_check = true
+        if ('K' !== kzVersion && 'Z' !== kzVersion) {
+          kzVersion = Math.random() >= 0.5 ? 'K' : 'Z'
         }
+        ConfigStorage.set({
+          kz_version: kzVersion
+        })
+        location.href = 'https://web.telegram.org/' + kzVersion.toLowerCase() + '/' + location.hash
       })
+      return
     }
     var checkReady = function checkReady () {
       var i

app/js/offline_manager.js

@@ -17,6 +17,14 @@
     !window.addEventListener) {
     return
   }
+  if ('web.telegram.org' !== location.hostname ||
+      Config.Modes.test ||
+      Config.Modes.ios_standalone ||
+      location.search.indexOf('legacy=1') != -1) {
+    // procceed
+  } else {
+    return
+  }
 
   var declined = false
   function updateFound () {