How to implement single logout using http-redirect

I am using the library ITfoxtec Identity SAML 2.0 to implement SAML 2.0 with an ASP.Net 4.6 MVC App and a 3rd party IdP that only supports http-redirect single logout. I am able to login, but I can’t get the single logout to work. The sample only use http-post to logout. Is there any sample code that is publicly available that shows how to implement a single logout using http-redirect?