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I'm trying to develop requests between my main domain (http://foo.com) ans my API (http://api.foo.com).
To bypass the restrictions about cross-subdomain stuff, I use an Iframe, on my main page (http.//foo.com/main.html), pointing on a page iframe.html there : scripts.api.foo.com.
(scripts.api.foo.com and foo.com are on the same server, api.foo.com on anothers)
>iframe.html :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Iframe</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
</head>
<body>
<script type="text/javascript">
document.domain = 'foo.com';
function testIframe()
{
$.ajax({
url: "http://api.foo.com/utctime",
timeout: 7000,
complete: function(jqXHR, textStatus){
parent.alert(jqXHR.status);}
});
}
</script>
</body>
</html>
>main.html :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
</head>
<body>
<script type="text/javascript">
document.domain = 'foo.com';
function test()
{
pipeFrame.testIframe();
}
</script>
<iframe style="" src="http://scripts.api.foo.com/iframe.html" width="500" height="50" id="pipeFrame" name="pipeFrame"></iframe>
<form>
<p>
<input type="button" value="Hop" onclick="test();" />
</p>
</form>
</body>
</html>
The alert window always contains "302" (Redirect) with Firefox 3.6/Chrome, "0" with IE8 ... Though Firebug tells me my request got a "200 Ok" status (and no response) ...
I've tried, directly on scripts.api.foo.com/iframe.html, to lauch the same request, and got the same status code.
I'm quite frustrated, after vainly searching all over the web a clear way to implement cross-subdomain, or an explanation about those status code ... Any help would be welcome.
Thanks a lots for your attention. Bye.
671
Unfortunately the rules for cross-domain requests also end up blocking requests that are within a subdomain even though technically it's the same server. You can either run through proxy or use a cross-domain hack to allow the $.ajax call to operate. There's a really good article on using iFrames and cross domain stuff here
http://softwareas.com/cross-domain-communication-with-iframes
157
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