28497 2015-04-16 05:52:57 +0000 In 15.1, one of the obsolete features is: 2015-08-28 15:52:49 +0000 1 1 1 Unclassified WHATWG HTML unspecified Other other RESOLVED WORKSFORME https://html.spec.whatwg.org/#obsolete P3 normal Unsorted 1 contributor ian annevk ian mike zcorpan contributor oldest_to_newest 119557 0 contributor 2015-04-16 05:52:57 +0000 Specification: https://html.spec.whatwg.org/multipage/obsolete.html Multipage: https://html.spec.whatwg.org/multipage/#obsolete Complete: https://html.spec.whatwg.org/#obsolete Referrer: https://html.spec.whatwg.org/multipage/index.html Comment: In 15.1, one of the obsolete features is: Authors should not specify a border attribute on an img element. If the attribute is present, its value *must* be the string "0". ... but in 15.1.1 the trigger for a warning is: The presence of a border attribute on an img element if its value is the string "0". ... so, which is acceptable? ="0" or not="0" ? Posted from: 66.191.156.48 User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0 119559 1 zcorpan 2015-04-16 07:59:36 +0000 Warning: border=0 Error: border=1 119592 2 ian 2015-04-16 22:15:51 +0000 Yeah, what Simon said. Neither is "acceptable".