问题
I need to make a request to a different domain with Ajax in jQuery!
Should I use iframe?
Edited:
On facebook.com working chat, with few different domain name?
GET http:// www.facebook.com/ajax/presence/reconnect.php?__a=1&reason=6&iframe_loaded=false&post_form_id=23be2df75b74a0bcb61358814c56ba4f 200 OK
GET http://0.50.channel.facebook.com/x/2562941315/4271808869/true/p_1529934952=2 200 OK
I want something like...
回答1:
You can not because of same origin policy.
You have a few options.
JSONP
You make a request with a script element, and pass it a callback to one of your functions to handle the data.
Server side proxy
Basically, you create a wrapper on the server side. You can use cURL or equivalent. Request the data with your server and then serve it from under the same domain.
回答2:
You can't. Consider using JSONP instead, which uses <script> tags to retrieve data.
回答3:
Take a look at http://api.jquery.com/jQuery.getJSON/ and JSONP
来源：https://stackoverflow.com/questions/4011156/how-to-request-different-domain-with-ajax-in-jquery