HTMLHeadElement

HTMLHeadElement

[1] 518110 – nuke HTMLBaseFontElement interface ( ( 版)) <https://bugzilla.mozilla.org/show_bug.cgi?id=518110>

[2] Fix which built-in elements can be customized (domenic著, ) <https://github.com/whatwg/html/commit/7d6b279b0d2bc30752700155a043b65441fe12e3>