Why not use DOMParser?

[burtonator]

I was looking at the code and I don't think you're using DOMParser.

It's a bit modern of course and doesn't support Node but I think this would be a better way to go.

It would allow you to use the same parsing algorithm as the browser, which I assume is more tested, reduce the surface area of your code and possibly remove exploitable bugs.

Maybe there's a reason the current code is preferred?

[leizongmin]

Here is some reasons:

• The initial use of this module is in Node.js, so it can’t use a browser only DOMParser.
• We need a pure JavaScript parser, so it can't use a native module.