Check that usage of the $stylesheet filter option in an exception filter works as expected.
+With the filter(s) displayed below each test case added to ABP (or with the testcase subscription installed and active), the image should be blocked while the stylesheet should not be.
||testpages.adblockplus.org/testcasefiles/stylesheetexception/*+
@@testpages.adblockplus.org/testcasefiles/stylesheetexception/$stylesheet