Code from other sites shows up in my page.- Possible security Issue

[Brita Nelson]

 I am working on a webpage behind a firewall using firebug and firefox. If I go to another website (cnn or reddit), then come back to my test web site then go to the new page, which has an error in the jquery dropdown code, instead of getting the notice that there is an error in jquery-1.8.3.js, I get a notice that there is an error in the code from the other site. For instance http://www.redditstatic.com/reddit-init.en.IY9Adp1eOs.js shows up in the error console when I am on my own test server. Since the code on my page is trying to run someone else's code is this a security issue, or is there some sort of bug with firebug caching the other page's code. I am posting a screen shot to show this.

Thanks,
Brita

ps. I don't get this when I debug in IE or the firefox web developer.

[Jan Honza Odvarko]

Sounds like Firebug doesn't recognize the parent tab for the error properly.

In order to fix this I need to reproduce the problem on my machine. How can I do it?

Honza