Alter RelayState with SAML Response

[Supakit Kiatrungrit]

Hi,

We are implementing the Shibboleth IdP Postlogin Flow / Filter and would like to redirect the user back to the original page. However, this seems require saving the original RelayState to the session and alter RelayState value on the second request when return from the Postlogin Flow page. Do you have any suggestion on how to redirect the user to original page by replacing the Relaystate from the session. Are there any other alternatives?

Thanks,
Nat