[whatwg] Handling in the "after head" insertion mode

Thu Dec 4 02:34:56 PST 2008

Consider the following simple markup:

<!doctype html></br>

If I run it through my parser, which is implemented after the html5 
algorithm, the resulting dom is as follows:

<html>
    <head>
    <body>

The br end tag is a bit special, and should be handled as if it was a br 
start tag. What happens here is as follows: The "before head" insertion 
mode will, upon receiving a br end tag, create a head node and switch to 
the "in head" insertion mode. "in head" will close the head node and 
move on to the "after head" insertion mode. I was expecting "after head" 
to see the and do like it does on a start tag, which is to create 
a body node and move to the "in body" state, but the is just ignored.

I've changed my implementation of "after head" to handle just like 
the "in head" insertion mode, which is:

    An end tag whose tag name is "br"
        Act as described in the "anything else" entry below.

This results in the following dom, for the example above:

<html>
    <head>
    <body>
       <br>

This matches Internet Explorer and Opera, but not Firefox and Safari. 
Then again, it looks like Firefox and Safari ignore all tags.

Regards,
Tommy

[whatwg] Handling </br> in the "after head" insertion mode