Access-Control-Allow-Origin不适用于同一域中的iframe [英] Access-Control-Allow-Origin not working for iframe within the same domain
问题描述
我正在尝试访问子域中的iframe并收到跨域错误.
这是示例 .mydomain.com/iframe_test.html的代码:
I'm trying to access an iframe within a subdomain and get a cross domain error.
Here is the code of example.mydomain.com/iframe_test.html:
<html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
</head>
<body>
<iframe src="http://example2.mydomain.com/welcome.php" width="1000" height="600"></iframe>
<script>
$(document).ready(function()
{
setTimeout(function(){
$('#innerdiv',$('iframe').contents()).hide();
},5000);
});
</script>
</body>
</html>
这是 example2 .mydomain.com/welcome.php的代码:
And here is the code of example2.mydomain.com/welcome.php:
<?php
header("Access-Control-Allow-Origin: " . "*");
?>
<html>
<head>
</head>
<body>
<div id="innerdiv">
hello
</div>
</body>
</html>
当执行 $('#innerdiv'，$('iframe').contents()).hide()行时，发生以下错误:
When the line $('#innerdiv',$('iframe').contents()).hide() is executed, the following error occurs:
Uncaught SecurityError: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Blocked a frame with origin "http://example.mydomain.com" from accessing a frame with origin "http://example2.mydomain.com". Protocols, domains, and ports must match.
我与Fiddler检查，在welcome.php的响应中确实返回了Access-Control-Allow-Origin标头
是否可以访问子域中iframe的内容?
I checked with Fiddler that the Access-Control-Allow-Origin header was really returned in the response of welcome.php
Is it possible to access the contents of an iframe within a subdomain?
推荐答案
Access-Control-Allow-Origin 仅用于XHR.
您所需要的称为相同起源政策.
您必须在页面中添加 document.domain ='example.com'.
这篇关于Access-Control-Allow-Origin不适用于同一域中的iframe的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
