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Manipulation: Plug an IE8 memory leak in noCloneEvent feature detect

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Fixes gh-1840

This feature detect could be simplified now that the only supported browser
with this problem is IE8.
This commit is contained in:
Dave Methvin 2014-12-06 16:51:50 -05:00
parent 4365133def
commit faf295a6d8
1 changed files with 2 additions and 10 deletions
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12
src/manipulation/support.js
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@ -48,16 +48,8 @@ define([
support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
// Support: IE<9
// Opera does not clone events (and typeof div.attachEvent === undefined).
// IE9-10 clones events bound via attachEvent, but they don't trigger with .click()
support.noCloneEvent = true;
if ( div.attachEvent ) {
div.attachEvent( "onclick", function() {
support.noCloneEvent = false;
});
div.cloneNode( true ).click();
}
// Cloned elements keep attachEvent handlers, we use addEventListener on IE9+
support.noCloneEvent = !!div.addEventListener;
// Execute the test only if not already executed in another module.
if (support.deleteExpando == null) {