FireFox + FireBug

Last week I ran into a peculiar problem at work where one of the features on one of our AJAX product was not working as it should be .

How does one debug this sort of problem anyway? Doing a view->source was making me brain dead. The amount of obfuscation in the code is amazing. After a little poking around, I stumbled across a firefox extension called firebug (which I had already installed. Doh!) which showed me that one of the GET requests to a outside property was failing with a 404.

Once I nailed the problem, it was as simple as getting them to fix the 404 and the feature started working again. Firebug is very impressive and handy.

Categorized as Other

By Shanker Balan

Shanker Balan is a devops and infrastructure freelancer with over 14 years of industry experience in large scale Internet systems. He is available for both short term and long term projects on contract. Please use the Contact Form for any enquiry.