I am working on a tool for usability evaluation of web sites.

I need to download an online web page using Extjs in order to extract some usability-related information from it.

I used Iframe technique to avoid Cross-Origin Request Blocking. I can load the page into the Iframe but when I call methods like Ext.fly, Ext.query, etc. to access a html tag in the downloaded page nothing is found.

Please help,

Thank you in advance,