ASP.NET Core allows cross-domain (CORS) requests

Little scum · Posted on 2021-7-27 11:06:37

Cross-origin resource sharing (CORS) (or colloquially translated as cross-domain resource sharing) is an HTTP header-based mechanism that allows the server to mark origins (domains, protocols, and ports) other than its own so that browsers can access and load these resources. Cross-origin resource sharing also checks whether the server will allow the real request to be sent through a mechanism that initiates a "preflight" request to the server-hosted cross-origin resource through the browser. In preflight, the header sent by the browser is marked with the HTTP method and the header that will be used in the real request.

Review:

SignalR adds cross-domain support for remote access
https://www.itsvse.com/thread-9627-1-1.html

ASP.NET Allows cross-domain OPTIONS requests
https://www.itsvse.com/thread-9343-1-1.html

Spring Boot allows cross-domain configuration
https://www.itsvse.com/thread-5075-1-1.html

asp.net MVC allows a single controller method to cross domains
https://www.itsvse.com/thread-4959-1-1.html

CORS setting WebApi cross-domain issue
https://www.itsvse.com/thread-3858-1-1.html

jQuery JSONP cross-domain practice
https://www.itsvse.com/thread-3516-1-1.html

nginx cross-domain resource sharing CORS to add response headers
https://www.itsvse.com/thread-3377-1-1.html

WebAPI does not support workarounds for cross-domain requests
https://www.itsvse.com/thread-3026-1-1.html

asp.net allows cross-domain access to interfaces
https://www.itsvse.com/thread-2675-1-1.html

JSONP - Solving the problem of cross-domain access in Ajax
https://www.itsvse.com/thread-2574-1-1.html

Problems and solutions for AJAX cross-domain calls to ASP.NET MVC or WebAPI services
https://www.itsvse.com/thread-2424-1-1.html

Access-Control-Allow-Origin Documentation:The hyperlink login is visible.

Add the following code to the ConfigureServices method in the startup class:

Login is visible.

At the same time, the Configure method of the class is used, as follows:

Login is visible.

Use the jQuery cross-domain call interface to send a POST request as follows:

Login is visible.

The renderings are as follows: