tugberk tugberk - 1 year ago 147
Javascript Question

hide javascript error from browser

I found this code sample on one of the questions;

window.onerror = function (msg, url, linenumber) {

//make ajax call with all error details and log error directly into the elmah database

//show freindly error msg here to user

//hide error from browser
return true;

What does 'hide error from browser' means and how can I do that?

I didn't know such a thing exists and I give it a try with try-catch block. After an error occurred, I realized that browser still shows the error. how can I hide error from browser


I tried following code and put that inside the head section of my all pages but noting happened;

<script type="text/javascript">

(function () {

window.onerror = function myErrorHandler(errorMsg, url, lineNumber) {


// Just let default handler run.
return true;



Answer Source

When the function returns true, this prevents the firing of the default event handler.

It's just the way the browser behaves if this function returns true.

See more

Recommended from our users: Dynamic Network Monitoring from WhatsUp Gold from IPSwitch. Free Download