28396 2015-04-03 04:12:29 +0000 There must be no more than one <base> element per document; rules are given for handling invalid situations ("...all [base elements] but the first are ignored"), but fail to cover the case 2015-08-28 16:00:51 +0000 1 1 1 Unclassified WHATWG HTML unspecified Other other RESOLVED WORKSFORME https://html.spec.whatwg.org/#the-base-element P3 normal Unsorted 1 contributor ian annevk mike zcorpan contributor oldest_to_newest 119212 0 contributor 2015-04-03 04:12:29 +0000 Specification: https://html.spec.whatwg.org/multipage/semantics.html Multipage: https://html.spec.whatwg.org/multipage/#the-base-element Complete: https://html.spec.whatwg.org/#the-base-element Referrer: https://html.spec.whatwg.org/multipage/ Comment: There must be no more than one <base> element per document; rules are given for handling invalid situations ("...all [base elements] but the first are ignored"), but fail to cover the case <base href="http://www.example.com/"> <base target="_blank"> There is only one <base> element with an href= attribute, and only one <base> element with a target= attribute; the rules only apply to _multiple_ <base> elements with a certain attribute. Perhaps the notes should refer to ignoring excess _attributes_: as written they refer to excess _elements_. I.e., merge all the <base> elements into one, containing the first (if any) href= attribute and the first (if any) target= attribute. Posted from: 125.238.146.34 User agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0 119299 1 zcorpan 2015-04-07 07:49:07 +0000 These notes seem correct to me -- they match the processing requirements. See https://html.spec.whatwg.org/multipage/infrastructure.html#conformance-classes