Access-Control-Allow-Origin 未显示在 codeigniter 的响应标头中
我的 Codeigniter 文件显示
My Codeigniter file says
$CI->output->set_header("Access-Control-Allow-Origin: *");
$CI->output->set_header("Access-Control-Expose-Headers: Access-Control-Allow-Origin");
$CI->output->set_status_header(200);
$CI->output->set_content_type('application/json');
echo json_encode(array("city" => "dhaka"));
但我得到的 http 响应是:
but the http response that i get are:
Request URL:http://localhost/index.php/location/city
Request Method:POST
Status Code:200 OK
Connection:Keep-Alive
Content-Length:16
Content-Type:text/html
Date:Sun, 22 Jul 2012 10:27:32 GMT
Keep-Alive:timeout=5, max=100
Server:Apache/2.2.21 (Unix) mod_ssl/2.2.21 OpenSSL/0.9.8r DAV/2 PHP/5.3.6
X-Powered-By:PHP/5.3.6
即使包含 Access-Control-Expose-Headers: Access-Control-Allow-Origin，响应中仍缺少标头 Access-Control-Allow-Origin.我有关此标头的信息来源来自 Mozilla 开发者网站
The header Access-Control-Allow-Origin is missing in the response even after including Access-Control-Expose-Headers: Access-Control-Allow-Origin. My source of information about this header is from Mozilla Developer Website
推荐答案
事实证明，只有当我通过 PHP 语法 header() 而不是 codeigniter 语法设置标头时，它才对我有用$CI->output->set_header().太可惜了.
It turns out, it worked for me only when i set the headers via the PHP syntax header() instead of the codeigniter syntax $CI->output->set_header(). That's sad.
感谢 @Yan 在本主题的问题中的第一条评论
Thanks to the first comment by @Yan at the Question of this topic
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