Use the highlighter API to avoid injecting content into the page

[nt1m]

This API : https://wiki.mozilla.org/DevTools/Highlighter
will allow you to inject overlays without injecting stuff within DOM. Plus, it works with e10s.

[Noitidart]

Wow this is very cool I did not know this was able to be done without injecting into the DOM. It has to read from the DOM though right?

[nt1m]

@Noitidart It doesn't. See the "Creating a new highlighter class" section