Add option to remove whitelisting comments

[benface]

Would it be possible to add an option to remove these comments after they are processed?

/*! purgecss ignore */
/*! purgecss start ignore */
/*! purgecss end ignore */

I am using Laravel-Mix which already cleans comments in production mode, but I have to add a ! at the beginning of the above comments (clean-css calls those "special comments") to prevent them from being removed before PurgeCSS has a chance to see them.

[Ffloriel]

Yes, I think this should be the default behavior as those comments are not necessary after PurgeCSS did his work.

[benface]

Yeah, I didn't want to suggest changing the default behaviour, but I agree; in fact I don't think it needs to be an option at all.