Check for window before window.QUnit (twbs#25199)

lukaszzdanikowski · Johann-S · commit 1a231e4bee0e · 2018-01-08T13:15:22.000+01:00
diff --git a/js/src/util.js b/js/src/util.js
@@ -39,7 +39,7 @@ const Util = (($) => {
   }
 
   function transitionEndTest() {
-    if (window.QUnit) {
+    if (typeof window !== 'undefined' && window.QUnit) {
       return false
     }
 

Original file line number	Diff line number	Diff line change
`@@ -39,7 +39,7 @@ const Util = (($) => {`
`39`	`39`	`}`
`40`	`40`
`41`	`41`	`function transitionEndTest() {`
`42`		`- if (window.QUnit) {`
	`42`	`+ if (typeof window !== 'undefined' && window.QUnit) {`
`43`	`43`	`return false`
`44`	`44`	`}`
`45`	`45`