29006 2015-07-29 21:37:59 +0000 What should happen when calling getComputedStyle for a pseudo that doesn't exist? 2015-09-04 09:01:47 +0000 1 1 1 Unclassified CSS CSSOM unspecified PC All NEW P2 normal --- 1 dzbarsky zcorpan public-css-bugzilla oldest_to_newest 122323 0 1618 dzbarsky 2015-07-29 21:37:59 +0000 Created attachment 1618 Testcase https://drafts.csswg.org/cssom/#extensions-to-the-window-interface [[ If pseudoElt is as an ASCII case-insensitive match for either ':before' or '::before' let obj be the ::before pseudo-element of elt. If pseudoElt is as an ASCII case-insensitive match for either ':after' or '::after' let obj be the ::after pseudo-element of elt. ]] The attached testcase alerts "auto" in Firefox, "50px" in Chrome and Safari, and "" in Opera. What should the behavior be when the pseudoelement doesn't exist? 123071 1 zcorpan 2015-09-04 09:01:47 +0000 The terminology section says "In this specification the ::before and ::after pseudo-elements are assumed to exist for all elements even if no box is generated for them." https://drafts.csswg.org/cssom/#terminology But that might not make it clear how it should behave; I'll look into this. 1618 2015-07-29 21:37:59 +0000 2015-07-29 21:37:59 +0000 Testcase gCS3.html text/html 237 dzbarsky PGh0bWw+CjxoZWFkPgo8c3R5bGU+CiNmb28gewp3aWR0aDogNTBweDsKfQo8L3N0eWxlPgo8L2hl YWQ+Cjxib2R5Pgo8ZGl2IGlkPSJmb28iPiBGT08gPC9kaXY+CjxzY3JpcHQ+CnZhciBmb28gPSBk b2N1bWVudC5nZXRFbGVtZW50QnlJZCgnZm9vJyk7CmFsZXJ0KGdldENvbXB1dGVkU3R5bGUoZm9v LCAiOmJlZm9yZSIpLmdldFByb3BlcnR5VmFsdWUoJ3dpZHRoJykpOwo8L3NjcmlwdD4KPC9ib2R5 Pgo8L2h0bWw+