Redirect from IdP to CAS with a param

[Lalith Jayaweera]

When the authrequest comes to IdP from SP it redirect to CAS with below
pattern



https://ourCASHOST/cas/login?service=https%3A%2F%2Fouridphost%2Fidp%2FAuthn%2FExtCas%3Fconversation%3De1s1&entityId=urn%3Auat%3xxx%3Amsssne
<https://loginuat.vu.edu.au/cas/login?service=https%3A%2F%2Fidpuatweb1.vu.edu.au%2Fidp%2FAuthn%2FExtCas%3Fconversation%3De1s1&entityId=urn%3Auat%253xxx%3Amsssne>



Is it possible to inject another param to above within IdP e.g. username
which gets from the SP link?



Need is based on the user param, the CAS flow will change.


Please let us know



Thanks
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