WSO2 IS Single Logout partially working

Question

I am testing SAML SSO using WSO2 Identity Server 5.0.0 with two PHP application instances as service providers (using onelogin phpsaml). I managed to make the single sign on to

Answer 1

Well, the problem is due to the fact that onelogin/php-saml implementation handles the IDP Logout request by redirecting the response to the IDP.

I change the code to returns the response instead and it is working now. Considering that I am new to the SAML standards, I am not sure if it is the correct way to solve that.