diff --git a/src/event.js b/src/event.js
index 2c9b55514..97a408839 100644
--- a/src/event.js
+++ b/src/event.js
@@ -11,6 +11,12 @@ function returnFalse() {
return false;
}
+function safeActiveElement() {
+ try {
+ return document.activeElement;
+ } catch ( err ) { }
+}
+
/*
* Helper functions for managing events -- not part of the public interface.
* Props to Dean Edwards' addEvent library for many of the ideas.
@@ -522,7 +528,7 @@ jQuery.event = {
focus: {
// Fire native event if possible so blur/focus sequence is correct
trigger: function() {
- if ( this !== document.activeElement && this.focus ) {
+ if ( this !== safeActiveElement() && this.focus ) {
this.focus();
return false;
}
@@ -531,7 +537,7 @@ jQuery.event = {
},
blur: {
trigger: function() {
- if ( this === document.activeElement && this.blur ) {
+ if ( this === safeActiveElement() && this.blur ) {
this.blur();
return false;
}
diff --git a/test/data/event/focusElem.html b/test/data/event/focusElem.html
new file mode 100644
index 000000000..eed082c1a
--- /dev/null
+++ b/test/data/event/focusElem.html
@@ -0,0 +1,16 @@
+
+
+
+
+ .focus() (activeElement access #13393)
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/test/unit/event.js b/test/unit/event.js
index 60f2c7a0a..1a1a5652e 100644
--- a/test/unit/event.js
+++ b/test/unit/event.js
@@ -2416,6 +2416,11 @@ testIframeWithCallback( "jQuery.ready promise", "event/promiseReady.html", funct
ok( isOk, "$.when( $.ready ) works" );
});
+testIframeWithCallback( "Focusing iframe element", "event/focusElem.html", function( isOk ) {
+ expect(1);
+ ok( isOk, "Focused an element in an iframe" );
+});
+
// need PHP here to make the incepted IFRAME hang
if ( hasPHP ) {
testIframeWithCallback( "jQuery.ready synchronous load with long loading subresources", "event/syncReady.html", function( isOk ) {