nginx 多域名跨域

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当浏览器发起ajax请求到其他域名时,会出现跨域的问题,在nginx上的解决方案是配置Access-Control-Allow-Origin来解决,此参数只允许配置单个域名或者*，当我们需要允许多个域名跨域访问时却不好配置,可以用map来实现

map $http_origin $corsHost { default 0; "~http://www.123admin.com" http://www.123admin.com; "~http://m.123admin.com" http://m.123admin.com; "~http://wap.123admin.com" http://wap.123admin.com; } server { listen 80; server_name search.123admin.com; root /nginx; location / { add_header Access-Control-Allow-Origin $corsHost; } } add_header Access-Control-Allow-Origin *;

location / {
if ($request_method = 'OPTIONS') {
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Methods 'GET,POST,PUT,DELETE,OPTIONS';
add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';
add_header Access-Control-Allow-Credentials true;
return 204;
}