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Toolbar: Check if obj is set before using it.

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Props pento.
See #44526.


git-svn-id: https://develop.svn.wordpress.org/trunk@43556 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
obenland 2018-08-06 19:32:12 +00:00
parent 4ce3db3e8d
commit c52e7c79b2
1 changed files with 2 additions and 2 deletions
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4
src/js/_enqueues/lib/admin-bar.js
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@ -303,9 +303,9 @@ if ( typeof(jQuery) != 'undefined' ) {
* @return {void} * @return {void}
*/ */
var addEvent = function( obj, type, fn ) { var addEvent = function( obj, type, fn ) {
if ( typeof obj.addEventListener === 'function' ) { if ( obj && typeof obj.addEventListener === 'function' ) {
obj.addEventListener( type, fn, false ); obj.addEventListener( type, fn, false );
} else if ( typeof obj.attachEvent === 'function' ) { } else if ( obj && typeof obj.attachEvent === 'function' ) {
obj.attachEvent( 'on' + type, function() { obj.attachEvent( 'on' + type, function() {
return fn.call( obj, window.event ); return fn.call( obj, window.event );
} ); } );