for my web application i need to access the contents of iframe which is loaded from the another application running on different port. i am using the javascript to access the contents of the iframe. all i need is the any preference is there for this.

Note: Both applications are running on the same host but different port. i know the document.domain solves the problem. but i have lot of pages may be 1000 or even more. its pretty big product. so i canot set in each and every page. so i created one extension for our product. so any preference is there then i can set the preference while installing the plugin. it solves the problem.