Global javascript exception handler (in Chrome)

Question

How do I overwrite the global Exception handler in javascript so that it becomes the top level handler for all uncaught exceptions?

EDIT: window.onerror didnt work, cod

Answer 1

Chrome Support for window.onerror

• I believe support started in Chrome v10 (Chromium Issue 7771), but it looks as if "full" support with CORS support was resolved around Chrome 30+ (Chromium Issue 159566)
• caniuse.com doesn't currently track this JS feature (GitHub Issue 11999) ... to add support to this issue, login to GitHub & "react" with a "Thumbs Up" on the original post (don't +1 in comments.)

Current Google Documentation for window.onerror

• Chrome DevTools ~ Handle runtime exceptions using window.onerror

Answer 2

As of 2013 Chrome supports the window.onerror. (I have version 25 comments imply earlier versions as well)

What I did was to wrap JQuery using currying to create a proxy that always does a try...catch in the JQuery functions.

I use it in www.js-analytics.com, however the solution only holds for JQuery scripts.

Before 2013 Google Chrome didn't support window.onerror, apparently it wasn't implemented in WebKit.

Answer 3

window.onerror = function(errorMsg, url, lineNumber) {
    // code to run when error has occured on page
}

Answer 4

Perhaps you're looking for window.onerror Not sure whether this is available on all browsers.