[nginx] CORS配置多域名详解程序员

server { 
    listen       80; 
    server_name  www.your.com; 
    root         /data/web/www.your.com; 
    access_log   /var/log/nginx/www.your.com_access.log; 
    error_log    /var/log/nginx/www.your.com_error.log; 
 
    set $cors_origin ""; 
    if ( $http_origin ~ https?://.*.(a|b).com ) { 
        set $cors_origin $http_origin; 
    } 
    add_header Access-Control-Allow-Origin $cors_origin; 
} 

[[email protected] /usr/local/nginx/conf/conf.d]# curl -I -H "Origin: https://test.a.com" https://www.your.com/a.jpg 
HTTP/1.1 200 OK 
Date: Sun, 05 May 2019 06:12:53 GMT 
Content-Type: image/jpeg 
Content-Length: 134100 
Connection: keep-alive 
Last-Modified: Tue, 05 Mar 2019 07:01:43 GMT 
ETag: "5c7e1ed7-20bd4" 
Expires: Tue, 04 Jun 2019 06:12:53 GMT 
Cache-Control: max-age=2592000 
Access-Control-Allow-Origin: https://test.a.com 
Accept-Ranges: bytes

[[email protected] /usr/local/nginx/conf/conf.d]# cat nginx_cors  
if ($request_method = 'OPTIONS') { 
    add_header 'Access-Control-Allow-Origin' '*'; 
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; 
    # 
    # Custom headers and headers various browsers *should* be OK with but aren't 
    # 
    add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
    # 
    # Tell client that this pre-flight info is valid for 20 days 
    # 
    add_header 'Access-Control-Max-Age' 1728000; 
    add_header 'Content-Type' 'text/plain charset=UTF-8'; 
    add_header 'Content-Length' 0; 
    return 204; 
} 
 
if ($request_method = 'POST') { 
    add_header 'Access-Control-Allow-Origin' '*'; 
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; 
    add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
} 
 
if ($request_method = 'GET') { 
    add_header 'Access-Control-Allow-Origin' '*'; 
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; 
    add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
}