149185 2015-09-15 14:53:39 -0700 CSS parser unable to recover after invalid @media block 2020-10-29 06:08:25 -0700 1 1 1 Unclassified WebKit CSS Safari 9 Mac OS X 10.10 RESOLVED FIXED HasReduction P2 Normal --- 1 hartman.wiki webkit-unassigned koivisto simon.fraser oldest_to_newest 1126143 0 261241 hartman.wiki 2015-09-15 14:53:39 -0700 Created attachment 261241 Reduced testcase The attached testcase shows that after an invalid media query block inside <style>, the CSS parser is unable to recover and ignores anything and everything that will follow the invalid block. Browsers like Chrome and Firefox, ignore the first statement after the invalid media query block (which in the testcase would have made the div blue), but then do apply any following statements (in the testcase making the div green). This caused a serious CSS styling issue on Wikimedia Commons, where a good percentage of CSS statements was ignored by Safari. Downstream report in Wikipedia: https://phabricator.wikimedia.org/T112552#1643002 1702691 1 hartman.wiki 2020-10-29 06:08:25 -0700 Seems this is fixed somewhere between Safari 9 and Safari 14. 261241 2015-09-15 14:53:39 -0700 2015-09-15 14:53:39 -0700 Reduced testcase CSS parser fatal.html text/html 227 hartman.wiki PGh0bWw+CjxoZWFkPgo8c3R5bGUgdHlwZT0idGV4dC9jc3MiPiNzaXRlU3ViIHtiYWNrZ3JvdW5k OnJlZDt3aWR0aDoxMDBweDtoZWlnaHQ6MTAwcHg7fUBtZWRpYSBzY3JlZW4gI3NpdGVTdWJ7YmFj a2dyb3VuZDpibHVlfSAjc2l0ZVN1YntiYWNrZ3JvdW5kOmdyZWVufTwvc3R5bGU+CjwvaGVhZD4K PGJvZHk+CiAgICA8ZGl2IGlkPSJzaXRlU3ViIj4KICAgIDwvZGl2Pgo8L2JvZHk+CjwvaHRtbD4=