Can `window.onerror` be used to write the error stack trace as a global error handler
I am trying to make a global error handler for any javascript error in the browser, so I used this code in the tag <head>
:
window.onerror = function(msg, url, line, col, error) {
// Note that col & error are new to the HTML 5 spec and may not be
// supported in every browser. It worked for me in Chrome.
var extra = !col ? '' : '\ncolumn: ' + col;
extra += !error ? '' : '\nerror: ' + error;
// You can view the information in an alert to see things working like this:
alert("Error: " + msg + "\nurl: " + url + "\nline: " + line + extra);
// TODO: Report this error via ajax so you can keep track
// of what pages have JS issues
var suppressErrorAlert = true;
// If you return true, then error alerts (like in older versions of
// Internet Explorer) will be suppressed.
return suppressErrorAlert;
};
But since I'm using a CDN with minifying my javascript files, I always get these useless values passed to the function:
msg: Script error.
url: ''
string: 0
col: 0
error: null
(results from Chrome version 43.0.2357.125 (64-bit)
on Ubuntu)
So, is there anyway I can get the error stack trace (or even any information about it) from within window.onerror
?
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