> I have absolutely no idea how one can be motivated to implement HTML parsing from WHATWG's description To be compatible with every other browser and HTML par

> I have absolutely no idea how one can be motivated to implement HTML parsing from WHATWG's description To be compatible with every other browser and HTML parser on the planet? Yes, it's quirky. That's what happens when you have a Wild West of HTML for over a decade between Netscape and Internet Explorer. HTML5 is the embodiment of "perfect is the enemy of good". Parsing as you think it should be done would put you at odds with the reality of how HTML is used.