authentication cookies

Hi, not sure if this is possible but can a can a metadata agent use authentication cookies in one of its html requests? from a site already authenticated to by chrome.

 

So, for example...I open chrome, log into the site and get the cookies then my agent uses those cookies in its request? I've tried to authenticate to the site within the plugin but had no luck and tried the cookiesforurl method also.

 

any help would be greatly appreciated.