I have an environment that doesn't allow server side scripting really (it is extremely difficult to get a script "installed" on the server). I tried using an iframe to violate javascript's same origin poilcy; however, that didn't work. Are there any other workarounds I am not aware of?
Thanks!
Hopefully not, as it would be a security hole! :)
But if both your sites are subdomains on the same domain, maybe document.domain can help.
JSON-P is the simplest solution, and the only one (AFAIK) that doesn't require browser plugins (such as Flash).
This does require the cooperation of whomever runs the different origin site.
As David Dorward mentioned, JSON-P is the simplest and fastest; however, there is another trick, specifically using two iframes. If you're interested or JSONP is not an option, I can go into further implementation details of the later technique.
Sooo as an update. I found out about: YQL from http://ajaxian.com/archives/using-yql-as-a-proxy-for-cross-domain-ajax
It will grab whatever url you specify and wrap it in JSON and return back. You could then use jquery's getJSON function to grab that url. It seems to be working :)!
Just use easyXDM, it's a library that enables cross-domain messaging with very little coding, and it doesn't need any server components.