我正在尝试从www.siteone发布表单数据。com访问www.sitetwo。com通过CORS。我的ajax代码如下:
<script>
$(document).ready(function(){
$("#submit").live('click',function() {
var url = "http://www.sitetwo.com/cors.php";
var data = $('#form').serialize();
jQuery.ajax({
url : url,
type: "POST",
data : $('#form').serialize(),
}).done(function(response){
alert(response);
}).fail(function(error){
console.log(error.statusText);
});
return false;
});
});
</script>
并且文件cors.phpwww.sitetwo.com
如下:
<?php
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST, GET, OPTIONS');
echo "hai";
?>
但仍会引发访问控制允许起源错误。抛出的错误是:
XMLHttpRequest cannot load http://www.sitetwo.com/cors.php. Origin http://www.siteone.com is not allowed by Access-Control-Allow-Origin.
我开始知道,使用CORS,通过允许远程网站通过标题,我们可以使用跨域请求。但是当我这样尝试时,错误被抛出。我错过什么了吗?这是我的请求/响应头:
Response Headers
Connection Keep-Alive
Content-Length 487
Content-Type text/html; charset=iso-8859-1
Date Fri, 23 Aug 2013 05:53:20 GMT
Keep-Alive timeout=15, max=99
Server Apache/2.2.15 (CentOS)
WWW-Authenticate Basic realm="Site two Server - Restricted Area"
Request Headers
Accept */*
Accept-Encoding gzip, deflate
Accept-Language en-US,en;q=0.5
Content-Length 43
Content-Type application/x-www-form-urlencoded; charset=UTF-8
Host www.sitetwo.com
Origin http://www.siteone.com
Referer http://www.siteone.com/index.html
User-Agent Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0
最后,我自己解决了问题中解释的问题。我为访问标头而实现的代码不正确。
下面提到的两行代码在给出时不起作用:
<?php
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST, GET, OPTIONS');
?>
但是正确处理CORS请求就有点复杂了。这里有一个函数,它会反应更充分。更新后的代码如下:
<?php
// Allow from any origin
if (isset($_SERVER['HTTP_ORIGIN'])) {
header("Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}");
header('Access-Control-Allow-Credentials: true');
header('Access-Control-Max-Age: 86400'); // cache for 1 day
}
// Access-Control headers are received during OPTIONS requests
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD']))
header("Access-Control-Allow-Methods: GET, POST, OPTIONS");
if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']))
header("Access-Control-Allow-Headers: {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}");
exit(0);
}
echo "You have CORS!";
?>
我发现从另一个职位它的工作......
要允许所有人使用CORS,请执行以下操作:
<?php
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept');
echo "You have CORS!";
另一个原因是,如果php中缺少分号或其他内容,即使启用了错误报告,该CORS错误消息也将是ajax显示的唯一错误,而您可以通过在浏览器中转到php url查看实际错误。