Webrequest 57 (#467)
Webrequest 57 (#467)

* Add data for webRequest.filterResponseData

* Note challenger.host problem in Firefoxes < 57

mdn/browser-compat-data,teoli2003/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data