Enterprise Application Architecture with .NET Core

Enable CORS

When accessing Web API from client applications, it restricts access to web resources unless they are being used from the same domain where the application is running. In the ASP.NET project, we can enable CORS (Cross Origin Resource Sharing), which allows a restricted resource to be accessible by any other domain where the client application is running. CORS in the ASP.NET project can be configured in several ways, and can specify Origin, Header, and Method, which we need to be allowed from external sources.

To enable CORS in ASP.NET MVC 6, we have to add a NuGet package, as follows: Microsoft.AspNetCore.Cors

We can configure CORS at the Controller, Action, or Middleware levels. To enable CORS, we have to first define the policies, ...