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How to break IE7 on Vista

microsoft.public.internetexplorer.general






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  #1 (permalink)  
Old 02-28-2009
Brian
 

Posts: n/a
How to break IE7 on Vista
If you load the following HTML in IE7 and drag the text that says
"drag this" from the middle, the mouse will stop responding. In a more
complex page, this can crash IE.

<html>
<head>
<script language="javascript"><!--
function setupBug() {
var element = document.createElement('div');
element.appendChild(document.createTextNode("I should be
invisible"));
window._elem = element;
var i = 0;
setInterval(function() { i++; }, 10);
}
function runBug() {
window._elem.attachEvent("onmousemove", function(event) {
alert(event);
});
window._elem.setCapture();
}
// -->
</script>
</head>
<body onLoad='setupBug()'>
Demonstration of an IE bug
<div onmousedown="runBug()">
Drag this
</div>
</body>
</html>
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  #2 (permalink)  
Old 02-28-2009
PA Bear [MS MVP]
 

Posts: n/a
Re: How to break IE7 on Vista
Patient (demonstrating): "Doctor, it hurts when I do this!"
Doctor: "Don't do that."

Don't do that.

Brian wrote:
> If you load the following HTML in IE7 and drag the text that says
> "drag this" from the middle, the mouse will stop responding. In a more
> complex page, this can crash IE.
>
> <html>
> <head>
> <script language="javascript"><!--
> function setupBug() {
> var element = document.createElement('div');
> element.appendChild(document.createTextNode("I should be
> invisible"));
> window._elem = element;
> var i = 0;
> setInterval(function() { i++; }, 10);
> }
> function runBug() {
> window._elem.attachEvent("onmousemove", function(event) {
> alert(event);
> });
> window._elem.setCapture();
> }
> // -->
> </script>
> </head>
> <body onLoad='setupBug()'>
> Demonstration of an IE bug
> <div onmousedown="runBug()">
> Drag this
> </div>
> </body>
> </html>

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