PropertiesChromeCriOSEdgeFirefoxGooglebotIEOperaSafariSamsungBrowser
checkPermission 15.0.874?? 48.0.0??? 4.0.0?
createHTMLNotification 15.0.874?????? 4.0.0?
createNotification 15.0.874?? 48.0.0??? 4.0.0?
requestPermission 15.0.874?? 48.0.0??? 4.0.0?