There are several issues that can arise when using a Citrix NetScaler as a SAML IDP. Although SAML is a great standard and defines very well how SAML works, some details are implementation-dependent. Many of the problems that arise stem from misunderstandings between SP and Citrix NetScaler IDP. Problems can occur in two places: on the way from the SP to the IDP and on the way back from the IDP...
Troubleshooting Citrix NetScaler SAML-IDP
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