Enabling CORS in Web Api 2

Question

I have read through a lot of the stuff over enabling CORS in my web api.

I installed the NuGet Package and added this line to my WebApiConfig.cs:

config.EnableCors(new EnableCorsAttribute("*", "*", "*"));

I can't actually compile my code though because it says it does not have a definition for EnableCORS .

So... what is wrong? (Yes, I did install the CORS package using this:

Install-Package Microsoft.AspNet.WebApi.Cors

Answer 1

To solve this problem you need to do like this

1. remove all custom headers from your web.config
2. Add this reference in your web api project:

   System.Web.Http.Cors

3. add the following line code inside the Register method of the WebApiConfig class.

   config.EnableCors();

4. Add the following attribute in your controller(s)

   [EnableCors(origins: " ", headers: " ", methods: "*", SupportsCredentials = true)]