5 chrome? || firefox? || safari? || edge? || ie?(">8") || generic_webkit?
9 chrome? || firefox? || safari? || edge? || ie?(">8") || generic_webkit?
13 chrome?(">44") || firefox?(">24") || safari?(">7") || edge?(">11") || generic_webkit?
17 webkit? && !chrome? && !safari? && !edge?
23 Browser::Base.include(OpenStreetMap::Browser::Features)