Test fix for CSP policy

The CSP filter on SFDC handles iframes differently (allows anything on
non-prod enviroments). See CSPReportLoggingTest on SFDC for coverage of
the CSP filter there.

@bug W-2312941@
@rev amcculloch@
@P4CL:9038972@
Merging origin/tbliss/master-pending-csp-logging-testfix into master