servicecallout.policy_name.expectedcn variable returning null value

[somdev]

Hi @dchiesa1 ,

I'm trying to fetch the common name of  a target used in service callout using this flow variable servicecallout.policy_name.expectedcn, but the  variable is returning null value. I'm trying to fetch the value in a JS after the Service callout executes. 

[dchiesa1]

I think the documentation is not clear on that variable. It looks to me that the servicecallout policy READS the variable servicecallout.policy_name.expectedcn . It does not SET it.  And then, it will use that common name to check the certificate on the peer.