loading json feed from google (crossdomain permissions problem ?)

loading json feed from google (crossdomain permissions problem ?)

I searched and searched... unfortunately I'm just not knowledgable enough to work it out on my own...
 
how do I load google's picasa album JSON feed from my site?
 
In the browser I can enter this URL
 
 
 and it works (returns the expectd JSON).
 
Notice I use "default" as username, which is the currently authenticated user for google, as I have successfully authenticated like this: https://www.google.com/accounts/AuthSubRequest?scope=http://picasaweb.google.com/data/&session=1&secure=0&next=http://mywebsite.com/googleauth
 
Once I try to load this URL ( http://picasaweb.google.com/data/feed/base/user/default?alt=json&kind=album) in jquery, however, I get permission denied.
 
I tried adding authkey parameter from my token like this:
 
 $.getJSON(g, function(data) {... etc...etc...
 
I think I am either doing the wrong thing or I'm missing something about making the token persistent...
surely someone out there knows? I do hope so...
 
Thanks all!