完成跨域问题

nginx/default.conf

@@ -16,12 +16,24 @@ server {
       }
   
   location ^~ /nzwz {
-    add_header Access-Control-Allow-Origin http://nzwz-system always;
-    add_header Access-Control-Allow-Headers "Accept,Accept-Encoding,Accept-Language,Connection,Content-Length,Content-Type,Host,Origin,Referer,User-Agent";
-    add_header Access-Control-Allow-Methods "GET, POST, PUT, OPTIONS";
-    add_header Access-Control-Allow-Credentials true;
+    if ($request_method = 'POST') {
+      #add_header 'Access-Control-Allow-Origin' '*' always;
+      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS,PUT,DELETE,OPTION';
+      add_header 'Access-Control-Allow-Credentials' 'true';
+      add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization,Accept,Referer,Accept-Encoding,Accept-Language,Access-Control-Request-Headers,Access-Control-Request-Method,Connection,Host,Origin,Sec-Fetch-Mode';
+    }
+    if ($request_method = 'GET') {
+      #add_header 'Access-Control-Allow-Origin' '*' always;
+      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS,PUT,DELETE,OPTION';
+      add_header 'Access-Control-Allow-Credentials' 'true';
+      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,Accept,Referer,Accept-Encoding,Accept-Language,Access-Control-Request-Headers,Access-Control-Request-Method,Connection,Host,Origin,Sec-Fetch-Mode';
+    }
     if ($request_method = 'OPTIONS') {
-        return 200;
+      add_header 'Access-Control-Allow-Origin' '*' always;
+      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS,PUT,DELETE,OPTION';
+      add_header 'Access-Control-Allow-Credentials' 'true';
+      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,Accept,Referer,Accept-Encoding,Accept-Language,Access-Control-Request-Headers,Access-Control-Request-Method,Connection,Host,Origin,Sec-Fetch-Mode';
+      return 204;
     }
 
     proxy_pass http://nzwz-server:8090;