BrowserVersionOwn?TypeAs String
BingPreview1.0.0???
Chrome27.0.1500???
Chrome49.0.2623ownfunctionfunction MessagePort() { [native code] }
Chrome69.0.3497???
Chrome70.0.3538ownfunctionfunction MessagePort() { [native code] }
Chrome79.0.3945???
Chrome80.0.3987ownfunctionfunction MessagePort() { [native code] }
Chrome85.0.4183???
Chrome86.0.4240ownfunctionfunction MessagePort() { [native code] }
Chrome89.0.4354???
Chrome89.0.4386ownfunctionfunction MessagePort() { [native code] }
Chrome90.0.0???
Chrome90.0.4430ownfunctionfunction MessagePort() { [native code] }
Edge85.0.564???
Edge86.0.622ownfunctionfunction MessagePort() { [native code] }
Edge87.0.651???
Edge87.0.658ownfunctionfunction MessagePort() { [native code] }
Edge87.0.664???
Edge88.0.670ownfunctionfunction MessagePort() { [native code] }
Edge88.0.705???
Firefox46.8.0???
Firefox70.0.0ownfunctionfunction MessagePort() { [native code] }
Firefox88.0.0???
Firefox89.0.0ownfunctionfunction MessagePort() { [native code] }
IE10.0.0ownobject[object MessagePort]
Safari4.0.0ownfunctionfunction MessagePort() { [native code] }
Safari7.0.0???
Safari10.1.2ownfunctionfunction MessagePort() { [native code] }
Safari13.0.3ownfunctionfunction MessagePort() { [native code] }
Safari13.0.4ownfunctionfunction MessagePort() { [native code] }
SamsungBrowser13.0.0???
SFive80.0.0ownfunctionfunction MessagePort() { [native code] }
TkBot0.1.0???
YandexBot3.0.0ownfunctionfunction MessagePort() { [native code] }

PropertiesBingPreviewChromeEdgeFirefoxIESafariSamsungBrowserSFiveTkBotYandexBot
length? 49.0.0 86.0.622 70.0.0? 4.0.0? 80.0.0? 3.0.0
prototype? 49.0.0 86.0.622 70.0.0 10.0.0 4.0.0? 80.0.0? 3.0.0