Get Claims from SAML Response through Kapsel Logon Plugin

Hi,

We have SAML authentication setup with our SMP 3 platform and are using the Kapsel Logon plugin. Everything works, but now we want to retrieve some of the claims/properties that are being passed via the SAML Assertion to our client. We're sending back email address, last name, first name, etc.

I want to be able to use the user id in my application to do some logic. I've heard that the Logon plugin doesn't expose an API to get these values. Just want to confirm here and see if anyone has ideas on how to resolve this issue?

If we need to craft our own requests from the client to do the SAML auth, can anyone recommend an alternative JavaScript library to handle this or examples on how to roll our own so that we can retrieve the values from the assertion?

Note: We have SMP 3.0.7.2. Kapsel Logon 3.9.3. This is for a hybrid app using Cordova/OpenUI5

Thanks so much!