BrowserVersionOwn?TypeAs String
Build41.3.0???
Chrome69.0.3496???
Chrome69.0.3494ownfunctionfunction MessageChannel() { [native code] }
Chrome69.0.3472ownfunctionfunction MessageChannel() { [native code] }
Chrome69.0.3466ownfunctionfunction MessageChannel() { [native code] }
Chrome69.0.3457ownfunctionfunction MessageChannel() { [native code] }
Chrome69.0.3449???
Chrome68.0.3440ownfunctionfunction MessageChannel() { [native code] }
Chrome68.0.3434???
Chrome68.0.3423???
Chrome68.0.3409ownfunctionfunction MessageChannel() { [native code] }
Chrome68.0.3400ownfunctionfunction MessageChannel() { [native code] }
Chrome67.0.3396ownfunctionfunction MessageChannel() { [native code] }
Chrome67.0.3394???
Chrome67.0.3386???
Chrome66.0.3359ownfunctionfunction MessageChannel() { [native code] }
Chrome66.0.3336???
Chrome65.0.3325ownfunctionfunction MessageChannel() { [native code] }
Chrome65.0.3294ownfunctionfunction MessageChannel() { [native code] }
Chrome64.0.3350ownfunctionfunction MessageChannel() { [native code] }
Chrome64.0.3282ownfunctionfunction MessageChannel() { [native code] }
Chrome64.0.3253ownfunctionfunction MessageChannel() { [native code] }
Chrome63.0.3239ownfunctionfunction MessageChannel() { [native code] }
Chrome63.0.3231ownfunctionfunction MessageChannel() { [native code] }
Chrome63.0.3214???
Chrome63.0.3205???
Chrome62.0.3202ownfunctionfunction MessageChannel() { [native code] }
Chrome62.0.3176ownfunctionfunction MessageChannel() { [native code] }
Chrome62.0.3175???
Chrome62.0.3172ownfunctionfunction MessageChannel() { [native code] }
Chrome62.0.3166???
Chrome61.0.3163ownfunctionfunction MessageChannel() { [native code] }
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] }
Chrome58.0.3300ownfunctionfunction MessageChannel() { [native code] }
Chrome58.0.3050ownfunctionfunction MessageChannel() { [native code] }
Chrome58.0.3029ownfunctionfunction MessageChannel() { [native code] }
Chrome57.0.2987???
Chrome56.0.2924ownfunctionfunction MessageChannel() { [native code] }
Chrome55.0.2883???
Chrome54.0.2840ownfunctionfunction MessageChannel() { [native code] }
Chrome52.0.2743ownfunctionfunction 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???
Chrome38.0.2125ownfunctionfunction MessageChannel() { [native code] }
Chrome37.0.2062ownfunctionfunction MessageChannel() { [native code] }
Chrome36.0.1985ownfunctionfunction MessageChannel() { [native code] }
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] }
Chromium65.0.3325ownfunctionfunction MessageChannel() { [native code] }
Chromium63.0.3239???
Chromium62.0.3202???
Chromium61.0.3163???
Chromium60.0.3112???
Chromium48.0.2564???
Chromium37.0.2062???
CriOS66.0.3359???
CriOS65.0.3325ownfunctionfunction MessageChannel() { [native code] }
CriOS64.0.3282ownfunctionfunction MessageChannel() { [native code] }
CriOS62.0.3202ownfunctionfunction MessageChannel() { [native code] }
Edge17.17134.0ownfunctionfunction MessageChannel() { [native code] }
Edge16.16299.0ownfunctionfunction MessageChannel() { [native code] }
Edge15.15063.0ownfunctionfunction MessageChannel() { [native code] }
Edge14.14393.0ownfunctionfunction MessageChannel() { [native code] }
Edge13.10586.0ownfunctionfunction MessageChannel() { [native code] }
Edge12.10136.0ownfunctionfunction MessageChannel() { [native code] }
Firefox63.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox62.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox60.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox59.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox58.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox57.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox56.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox55.0.0ownfunction function 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] }
Firefox50.0.0ownfunctionfunction MessageChannel() { [native code] }
Firefox44.0.0???
Firefox38.0.0???
Firefox35.0.0???
Firefox30.0.0???
Firefox29.0.0???
Firefox28.0.0???
Firefox27.0.0???
Firefox24.0.0???
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] }
IE9.0.0???
Mappy1.0.0???
Maxthon5.0.0???
Safari11.1.0ownfunctionfunction MessageChannel() { [native code] }
Safari11.0.3ownfunctionfunction MessageChannel() { [native code] }
Safari11.0.2ownfunctionfunction MessageChannel() { [native code] }
Safari11.0.1ownfunctionfunction MessageChannel() { [native code] }
Safari11.0.0ownfunctionfunction MessageChannel() { [native code] }
Safari10.1.2ownfunctionfunction MessageChannel() { [native code] }
Safari10.1.1ownfunctionfunction MessageChannel() { [native code] }
Safari10.0.0ownfunctionfunction MessageChannel() { [native code] }
Safari9.1.3ownobject[object MessageChannelConstructor]
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] }
SamsungBrowser7.2.0ownfunctionfunction MessageChannel() { [native code] }
SamsungBrowser6.2.0ownfunctionfunction MessageChannel() { [native code] }
SamsungBrowser4.0.0???

PropertiesBuildChromeChromiumCriOSEdgeFirefoxGooglebotIEMappyMaxthonSafariSamsungBrowser
length 18.6.0 15.0.874 65.0.3325 62.0.3202 12.10136.0 48.0.0 2.1.0??? 4.0.0 6.2.0
prototype 18.6.0 15.0.874 65.0.3325 62.0.3202 12.10136.0 48.0.0 2.1.0 10.0.0?? 4.0.0 6.2.0
toString? 15.0.874???? 2.1.0??? 4.0.0?