Check that a filter using the $popup filter option is working as expected.
Test that a filter using the $popup filter option works on a link based popup.
||abptestpages.org/testfiles/popup/link.html^$popup
Test that a filter using the $popup filter option works on a script based popup.
||abptestpages.org/testfiles/popup/script-tab.html^$popup
Test that a filter using the $popup filter option works on a script based popup.
||abptestpages.org/testfiles/popup/script-window.html^$popup