The 'Access-Control-Allow-Origin' header contains multiple values '*, *', but only one is allowed

Question

I\'m using Angular and ASP.NET API. The issue I\'m facing: when I add CORS in the API code, it works on Internet Explorer but does not work on Chrome and Firefox.

Here i

Answer 1

All other solutions provided for webAPI. This solution is for when you using webservice(.asmx) as API

Remove 'Access-Control-Allow-Origin' details from either in Global.asax.cs file's begin_request function or in web.config. Because this setting must be in one place only