fix: Meituan-Dianping#170

ZhengXiaoBai · Mar 23, 2018 · fae0866 · fae0866
1 parent 846719f
commit fae0866
Showing 1 changed file with 17 additions and 17 deletions.
diff --git a/src/core/util/env.js b/src/core/util/env.js
@@ -99,23 +99,23 @@ export const nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) setTimeout(noop)
     }
-  } else if (typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
-  )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
-    var counter = 1
-    var observer = new MutationObserver(nextTickHandler)
-    var textNode = document.createTextNode(String(counter))
-    observer.observe(textNode, {
-      characterData: true
-    })
-    timerFunc = () => {
-      counter = (counter + 1) % 2
-      textNode.data = String(counter)
-    }
+  // } else if (typeof MutationObserver !== 'undefined' && (
+  //   isNative(MutationObserver) ||
+  //   // PhantomJS and iOS 7.x
+  //   MutationObserver.toString() === '[object MutationObserverConstructor]'
+  // )) {
+  //   // use MutationObserver where native Promise is not available,
+  //   // e.g. PhantomJS IE11, iOS7, Android 4.4
+  //   var counter = 1
+  //   var observer = new MutationObserver(nextTickHandler)
+  //   var textNode = document.createTextNode(String(counter))
+  //   observer.observe(textNode, {
+  //     characterData: true
+  //   })
+  //   timerFunc = () => {
+  //     counter = (counter + 1) % 2
+  //     textNode.data = String(counter)
+  //   }
   } else {
     // fallback to setTimeout
     /* istanbul ignore next */