BrowserVersionOwn?TypeAs String
Chrome61.0.3159???
Chrome61.0.3156ownfunctionfunction MessageChannel() { [native code] }
Chrome61.0.3150???
Chrome61.0.3149ownfunctionfunction MessageChannel() { [native code] }
Chrome61.0.3147ownfunctionfunction MessageChannel() { [native code] }
Chrome61.0.3126???
Chrome60.0.3112ownfunctionfunction MessageChannel() { [native code] }
Chrome59.0.3071ownfunctionfunction MessageChannel() { [native code] }
Chrome58.0.3029ownfunctionfunction MessageChannel() { [native code] }
Chrome57.0.2987???
Chrome56.0.2924ownfunctionfunction MessageChannel() { [native code] }
Chrome51.0.2704ownfunctionfunction MessageChannel() { [native code] }
Chrome50.0.2661ownfunctionfunction MessageChannel() { [native code] }
Chrome49.0.2623ownfunctionfunction MessageChannel() { [native code] }
Chrome48.0.2564ownfunctionfunction MessageChannel() { [native code] }
Chrome47.0.2526???
Chrome46.0.2490???
Chrome45.0.2454???
Chrome44.0.2403ownfunctionfunction MessageChannel() { [native code] }
Chrome43.0.2357???
Chrome42.0.2311???
Chrome41.0.2272ownfunctionfunction MessageChannel() { [native code] }
Chrome40.0.2214???
Chrome39.0.2171???
Chrome38.0.2125ownfunctionfunction MessageChannel() { [native code] }
Chrome37.0.2062ownfunctionfunction MessageChannel() { [native code] }
Chrome36.0.1985ownfunctionfunction MessageChannel() { [native code] }
Chrome35.0.1916???
Chrome34.0.1847???
Chrome32.0.1700???
Chrome29.0.1547???
Chrome25.0.1364ownfunctionfunction MessageChannel() { [native code] }
Chrome24.0.1312ownfunctionfunction MessageChannel() { [native code] }
Chrome19.0.1084ownfunctionfunction MessageChannel() { [native code] }
Chrome15.0.874ownfunctionfunction MessageChannel() { [native code] }
Dragon36.1.1???
Edge15.15063.0ownfunctionfunction MessageChannel() { [native code] }
Edge14.14393.0ownfunctionfunction MessageChannel() { [native code] }
Firefox56.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox54.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox53.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox52.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox51.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox40.1.0???
Firefox32.0.0???
Firefox30.0.0???
Firefox29.0.0???
Firefox28.0.0???
Firefox27.0.0???
Firefox24.0.0???
Firefox21.0.0???
Firefox18.0.0???
Firefox6.0.0???
Firefox5.0.1???
Googlebot2.1.0ownfunctionfunction MessageChannel() { [native code] }
IE11.0.0ownfunction function MessageChannel() { [native code] }
IE10.0.0ownfunction function MessageChannel() { [native code] }
Safari10.1.2ownfunctionfunction MessageChannel() { [native code] }
Safari10.1.1ownfunctionfunction MessageChannel() { [native code] }
Safari10.1.0???
Safari10.0.0ownfunctionfunction MessageChannel() { [native code] }
Safari9.1.3ownobject[object MessageChannelConstructor]
Safari9.0.0???
Safari8.0.8ownobject[object MessageChannelConstructor]
Safari7.1.8ownobject[object MessageChannelConstructor]
Safari6.0.5ownobject[object MessageChannelConstructor]
Safari5.1.7ownobject[object MessageChannelConstructor]
Safari5.0.5???
Safari4.0.0ownfunctionfunction MessageChannel() { [native code] }
SamsungBrowser4.0.0???

PropertiesChromeDragonEdgeFirefoxGooglebotIESafariSamsungBrowser
length 15.0.874?? 51.0.0 2.1.0? 4.0.0?
prototype 15.0.874? 14.14393.0 51.0.0 2.1.0 10.0.0 4.0.0?
toString 15.0.874??? 2.1.0? 4.0.0?