The documentation for delegated SSO says "Add a link to your corporate intranet or other internal site that takes the authenticated user’s credentials and passes them through an HTTP POST to the Salesforce login page." How? Is it truly a POST to "https://login.salesforce.com", and if so, what is the body of the post I should be sending? I can't find any further documentation to help explain what they are suggesting in this documentation.

https://help.salesforce.com/articleView?id=sso_delauthentication_configuring.htm&type=5

I am not able to complete the che challenge "Set Up and Manage Shield Platform Encryption". Everytime it shows "The Case Description field does not appear to be encrypted. Make sure you have records with data in this field." Although I encrypted the Case description filed. Anyone have any idea how to get rid of it. Please help me. I am stucked in this step for two days.