更新

CorsServer/CorsServer.WebApi31/Startup.cs

@@ -120,7 +120,15 @@ namespace CorsServer.WebApi31
                     //请求来源
                     .AllowAnyOrigin()
                     //.WithOrigins(corsOption.Origins.ToArray())
-                    //.SetIsOriginAllowed(_ => true)
+                    //.SetIsOriginAllowed(requestOrigin => 
+                    //{
+                    //    //请求源(请求的协议+主机+端口号，比如 http://wwwww.xxxx.com:80)
+                    //    var address = requestOrigin;
+
+                    //    //根据请求源自行过滤
+
+                    //    return true;
+                    //})
                     //.SetIsOriginAllowedToAllowWildcardSubdomains()
 
                     //请求方法(POST GET PUT DELETE OPTIONS等)
@@ -155,9 +163,13 @@ namespace CorsServer.WebApi31
                     build
 
                     //请求来源
-                    .AllowAnyOrigin()
+                    //.AllowAnyOrigin()
                     //.WithOrigins()
-                    //.SetIsOriginAllowed(_ => true)
+                    .SetIsOriginAllowed(requestOrigin => 
+                    {
+                        var cc = requestOrigin;
+                        return true;
+                    })
                     //.SetIsOriginAllowedToAllowWildcardSubdomains()
 
                     //请求方法(POST GET PUT DELETE OPTIONS等)