Retrieve html across domains using jQuery and JSONP

Question

I have a form that outputs one simple line of html A LINK

I can access the process directly with data appended to the u

Answer 1

JSONP doesn't work like this, you're not sending JSON at all, you're sending HTML.

JSONP is strictly a GET request (made by creating a <script> tag), you cannot POST cross-domain and get the result back...it just doesn't work that way. The way JSONP works is it basically adds this to your page:

<script type="text/javascript" src="http://site.com/form.asp?order=something&callback=myFunc"></script>

....that response has to be valid JavaScript, typically it looks like:

myFunc({ "key": "value"...data, etc... });

It doesn't work for fetching HTML, it just throws a syntax error, this limitation is very intentional, and part of the security blocks in place (part of the same origin policy).

Answer 2

You can still post/get cross domain on the client:

flyJSONP/YQL
jankyPOST/postMessage/contentWindow
CORS