Handle HTML filters

[AndriusA]

HTML filters are rare, but a category of their own, separate from network and from cosmetic filters.

E.g. example.org$$script[data-src="banner"] should delete script element with matching data-src attribute

[maxmilton]

Are you talking about uBO's HTML filter syntax? Because your example seems different from uBO's documentation: https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#html-filters. Maybe the syntax changed since this issue was created?

Example from uBO:

example.com##^.badstuff
example.com##^script:has-text(7c9e3a5d51cdacfc)

I'd like to see this implemented.