onbeforeunload event behaves weirdly

R

RJN

Hi

I have an onbeforeunload event where in I call a server side script to
release some locks on the databse.

function releaseLock()
{
__doPostBack('btnUnlock','');
}
<body onbeforeunload="releaseLock();>

btnUnlock is a server side html button. I found that in a few occasions
I found that the lock was not released when the page was closed.(clicked
on the top right X). I put an alert inside and the message comes up. Any
idea why this inconsistent behaviour?

Regards

RJN
 

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