Google Chrome Javascript Debugger and Content Scripts

javascript google-chrome script-debugging
Clayton Hughes picture Clayton Hughes · May 22, 2009 · Viewed 48.1k times · Source

This question has been asked similarly before, but I can't seem to debug Javascript in Google Chrome.

If I go to Page > Developer the "Debug Javascript" (Ctrl+Shift+L) is disabled. Alt + ` doesn't work.

I'm developing a 'content script' extension so I'm launching chrome with --enable-extensions.

What I'd ideally like to do is set breakpoints and step/run through my script as it executes. I'm a little over my head when it comes to JavaScript, so any guidance is appreciated.

I can get to the 'JavaScript Console,' but can't find the content scripts inside of that. I'm also not sure how that differs from the 'JavaScript Debugger.'

I'm using the latest Dev build of Chrome (2.0.181.1) on Windows XP.

Answer

Amandasaurus picture Amandasaurus · Oct 13, 2010

Put the following command in your script:

debugger;

That will launch the Javascript debugger when it gets to that point

Related questions

Disable same origin policy in Chrome

Is there any way to disable the Same-origin policy on Google's Chrome browser?

Read More
Uncaught SyntaxError: Unexpected token :

I am running an AJAX call in my MooTools script, this works fine in Firefox but in Chrome I am getting a Uncaught SyntaxError: Unexpected token : error, I cannot determine why. Commenting out code to determine where the bad code …

Read More
How do I load an HTML page in a <div> using JavaScript?

I want home.html to load in <div id="content">. <div id="topBar"> <a href ="#" onclick="load_home()"> HOME </a> </div> <div id ="content"> </div> <…

Read More