javascript - load event for iframe does not fire in IE -

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i've created iframe in page here it's code: 

var frame = document.createelement('iframe'); frame.setattribute('src',''); document.body.appendchild(frame); if(document.addeventlistener){     frame.addeventlistener('load', callback, false); } else {     frame.attachevent('onload', callback); }  function callback(){     alert('test'); }

it works fine in ff no thing alerted in ie, why?
note use ie10 in win8

you need move document.body.appendchild() after addeventlistener() call

var frame = document.createelement('iframe'); frame.setattribute('src',''); if(frame.addeventlistener){     frame.addeventlistener('load', callback, true); } else {     frame.attachevent('onload', callback); } document.body.appendchild(frame);  function callback(){     alert('test'); }

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