Nginx解決No Access-Control-Allow-Origin header is present on the requested resource

這次快速用webinoly去搭建一個API，但是因為API需求會需要開啟跨域設定，紀錄一下這次解法。

在 /var/www/指定的域名 下面新增一個 自己命名-nginx.conf 的檔案 ，我先暫時命名 cros-nginx.conf，檔案內容如下即可

location ~ \.php$ {

    if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET,POST,OPTIONS,PUT,DELETE' always;
        add_header 'Access-Control-Allow-Headers' '*' always;
        add_header 'Access-Control-Max-Age' 1728000 always;
        add_header 'Content-Length' 0;
        add_header 'Content-Type' 'text/plain; charset=utf-8';
        return 204;
    }

    if ($request_method ~* '(GET|POST|DELETE|PUT)') {
        add_header 'Access-Control-Allow-Origin' '*' always;
    }

}

注意: 這是大門全開的做法。細節再依需求慢慢調整先了。

下面這段是AWS上確定可運行的，細部再看自己後面怎樣去調整了

location / {
     if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        #
        # Custom headers and headers various browsers *should* be OK with but aren't
        #
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        #
        # Tell client that this pre-flight info is valid for 20 days
        #
        add_header 'Access-Control-Max-Age' 1728000;
        add_header 'Content-Type' 'text/plain; charset=utf-8';
        add_header 'Content-Length' 0;
        return 204;
     }
     if ($request_method = 'POST') {
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range' always;
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;
     }
     if ($request_method = 'GET') {
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range' always;
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;
     }
}