check MutationObserver native-ness

yyx990803 · yyx990803 · commit 0e8af343a707 · 2016-09-28T18:34:15.000-04:00
diff --git a/src/core/util/env.js b/src/core/util/env.js
@@ -61,7 +61,7 @@ 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') {
+  } else if (typeof MutationObserver !== 'undefined' && isNative(MutationObserver)) {
     // use MutationObserver where native Promise is not available,
     // e.g. IE11, iOS7, Android 4.4
     var counter = 1

Original file line number	Diff line number	Diff line change
`@@ -61,7 +61,7 @@ export const nextTick = (function () {`
`61`	`61`	`// "force" the microtask queue to be flushed by adding an empty timer.`
`62`	`62`	`if (isIOS) setTimeout(noop)`
`63`	`63`	`}`
`64`		`- } else if (typeof MutationObserver !== 'undefined') {`
	`64`	`+ } else if (typeof MutationObserver !== 'undefined' && isNative(MutationObserver)) {`
`65`	`65`	`// use MutationObserver where native Promise is not available,`
`66`	`66`	`// e.g. IE11, iOS7, Android 4.4`
`67`	`67`	`var counter = 1`