fix: work around IE/Edge bug when accessing document.activeElement fr…

…om iframe close #6157
vuejs · Jul 21, 2017 · fc3d7cd · fc3d7cd
1 parent eb9168c
commit fc3d7cd
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
@@ -63,7 +63,11 @@ function shouldUpdateValue (
 function isDirty (elm: acceptValueElm, checkVal: string): boolean {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
-  return document.activeElement !== elm && elm.value !== checkVal
+  let notInFocus = true
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm } catch (e) {}
+  return notInFocus && elm.value !== checkVal
 }
 
 function isInputChanged (elm: any, newVal: string): boolean {