PureHTML.TreeBuilder.Modes.AfterHead (PureHTML v0.4.0)

HTML5 "after head" insertion mode.

This mode is entered after the head element is closed.

Per HTML5 spec:

Whitespace: Insert the character
Comment: Insert a comment
DOCTYPE: Parse error, ignore
<html> start tag: Process using "in body" rules
<body> start tag: Insert body element, switch to "in body"
<frameset> start tag: Insert frameset element, switch to "in frameset"
Head elements (<base>, <basefont>, <bgsound>, <link>, <meta>, <noframes>, <script>, <style>, <template>, <title>): parse error; push the head element, process using "in head" rules, remove the head element from the stack
</template>: Process using "in head" rules
</body>, </html>, </br>: Act as "anything else"
<head> start tag: Parse error, ignore
Any other end tag: Parse error, ignore
Anything else (EOF included): insert a body element, frameset-ok "ok", switch to "in body", reprocess