Open
Bug 789779
Opened 12 years ago
Updated 2 years ago
window.onerror only catches some JavaScript 'too much recursion' exceptions
Categories
(Core :: DOM: Core & HTML, defect, P5)
Tracking
()
UNCONFIRMED
People
(Reporter: mail, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.83 Safari/537.1 Steps to reproduce: I was trying to log JavaScript-exceptions and realized that window.onerror doesn't seem to catch all 'too much recursion' exceptions. I wrote a small JavaScript that causes a 'too much recursion' exception. window.onerror = errorHandler; function errorHandler (msg) { alert(msg); } setTimeout(function () { test.test = "test"; }, 1000); setTimeout(function stackoverflow() { stackoverflow(); }, 2000); A demo is on JSFiddle as well: http://jsfiddle.net/Mzvbk/1/ Actual results: When reloading the page including this script, only perhaps one time out of ten, the alert for the 'too much recursion' exceptions is thrown. Expected results: Every time the page is reloaded, two alerts should be shown. One for the first exception, and then a second alert for the 'too much recursion' exception.
Comment 1•12 years ago
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unsure if DOM or JS Engine, trying DOM I always seem to get the "too much recursion" exception with Mozilla/5.0 (Windows NT 6.1; rv:18.0) Gecko/18.0 Firefox/18.0 SeaMonkey/2.15a1 but never with Firefox 15
Component: Untriaged → DOM
Product: Firefox → Core
Reporter | ||
Comment 2•12 years ago
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It seems totally random. From my last try, reloading the jsfiddle referenced in the bug report, this is what I got. * First two reloads i get the 'too much recursion' alert * Five additional reloads without the alert * Then two times with 'too much recursion' * One time without the alert * Then again one 'too much recursion' Tested in: "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0" (In reply to Matthias Versen (Matti) from comment #1) > unsure if DOM or JS Engine, trying DOM > > I always seem to get the "too much recursion" exception with > Mozilla/5.0 (Windows NT 6.1; rv:18.0) Gecko/18.0 Firefox/18.0 > SeaMonkey/2.15a1 > > but never with Firefox 15
Comment 3•6 years ago
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https://bugzilla.mozilla.org/show_bug.cgi?id=1472046 Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5. If you have questions, please contact :mdaly.
Priority: -- → P5
Assignee | ||
Updated•5 years ago
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Component: DOM → DOM: Core & HTML
Comment 4•3 years ago
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I came from bug 1667962
(I noticed a strange too much recursion error and I now have a suspicion something is amiss with alert-like error reporting in JS code.)
This works as expected when I visited
http://jsfiddle.net/Mzvbk/1/
I get exactly the expected behavior.
Every time the page is reloaded, two alerts should be shown. One for the first exception, and then a second alert for the 'too much recursion' exception.
Updated•2 years ago
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Severity: normal → S3
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Description
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