Parse wrong with "<div>1<2</div>"

[zhangdaren]

rt. use hyntax parse code <div>1<2</div> has error code.
url: https://astexplorer.net/#/gist/b7fd5d9beb4f753f140ae3dc9de334ac/latest

btw:
parse5 is right!
url: https://astexplorer.net/#/gist/057bec29011e3b0ce04d0e31ef6e46ae/latest