In "Resource Profile -> Citrix StoreFront (HTML5 Receiver)" in Autopolicy: Single Sign-on, we need to set the following values for example :
Resource : https://labcitrix.psecurelab.com:443/Citrix/XenStoreWeb/ExplicitAuth/Login
Post URL : https://labcitrix.psecurelab.com:443/Citrix/XenStoreWeb/ExplicitAuth/LoginAttempt
Along with the other auto-populated values, we will have to send one more new attribute. We will have to add new attribute named "saveCredentials" and value set to "false".

Note : This article applies to PCS version 8.1 and 8.2.
If above suggestion does not fix the issue, please open a support case by navigating to https://www.pulsesecure.net/support and Case Management.