How to avoid CORS call?

Mrugesh Panchal

Hi All,

I am developing one application using .NET and Vue.js. Each time browser send a request to any of my API, Option call is first initiated and then data API. This adds performance overhead in my application. I am unable to solve this. I appreciate your help.

Thanks a lot !

4 Replies

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Madan Shekar8y ago
please use this line starting of ur contoller
[EnableCors(origins: "*", headers: "*", methods: "*")]

example :-
[EnableCors(origins: "*", headers: "*", methods: "*")]
public class AccountController : ApiController
{
}

for this you need to instal nuget package manager that is

Install-Package Microsoft.AspNet.WebApi.Cors -Version 5.2.6
Sanwar Ranwa8y ago
Hello Mrugesh

Please chech these Llinks

https://docs.microsoft.com/en-us/aspnet/web-api/overview/security/enabling-cross-origin-requests-in-web-api

https://www.infoworld.com/article/3173363/application-development/how-to-enable-cors-on-your-web-api.html

https://www.codeproject.com/Articles/617892/Using-CORS-in-ASP-NET-WebAPI-Without-Being-a-Rocke
Mrugesh Panchal8y ago
Thank you for answering. Honestly, I tried that but does not work. Let me try once again and let you know.
Sai Kumar Koona8y ago
Hi, OPTION request called as a pre-flight request which will verify the Cross-domain is available or not and also other parameters. Please check below link for more information

https://stackoverflow.com/questions/29954037/why-is-an-options-request-sent-and-can-i-disable-it