CORS endpoints on asp.net Webforms [WebMethod] endpoints

Question

I am trying to add some [WebMethod] annotated endpoint functions to a Webforms style web app (.aspx and .asmx).

I\'d like to annotate those endpoints w

Answer 1

I recommend double-checking you have performed all steps on this page: CORS on ASP.NET

In addition to:

Response.AppendHeader("Access-Control-Allow-Origin", "*");

Also try:

Response.AppendHeader("Access-Control-Allow-Methods","*");

Try adding directly in web config:

Failing that, you need to ensure you have control over both domains.