Last updated on February 7th, 2022 at 01:04 pm

If you want to View source code of web page using Javascript then here is a simple example just copy and paste the script below to your webpage and press the View Source button.

<form action="#" onsubmit="return getsource();">
<input type="submit" value="View Source!" />
<script type="text/javascript" >
function getsource()
 var thesource= window.location
 //, 'source_code', 'width=400, height=400, resizable=1, scrollbars=1');
 window.location.href = "view-source:"+thesource;
        return false;
This script is no longer working in any browsers.Chrome and Firefox disabled this feature.

More details on this link. They disabled it since its a security issue.
Additional information on bugzilla about this. 

If you use this script, you may encounter an error similar to

Uncaught TypeError: Location.href setter: Access to ‘view-source:’ from script denied.

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