Check that usage loading frames across subdomains works with exceptions. Note: This page won't work on CI as requires two different subdomains.
Test that loading frames across different subdomains with an exception works.
https://blocked.abptestpages.org/testfiles/iframe_exception/expected.png
##[alt="Test image placeholder"]
@@||blocked.abptestpages.org^$document,domain=allowed.abptestpages.org
Test that an exception filter defined with both $subdocument and $document option is applied like a $subdocument filter to an iframe
https://subdomain.abptestpages.org/testfiles/iframe_exception/subdomain_expected.png
##[alt="Test subdomain image placeholder"]
@@||allowed.abptestpages.org^$document,subdocument