BrowserVersionOwn?TypeAs String
Analyzer0.2.0???
BingPreview1.0.0???
Chrome49.0.2623???
Edge85.0.564???
Edge87.0.658ownobject[object MSMediaKeys]
Edge87.0.664???
Firefox56.0.0???
IE10.0.0???
IE11.0.0ownobject[object MSMediaKeysPrototype]
Safari4.0.0???
SamsungBrowser13.0.0???
SFive80.0.0???
YandexBot3.0.0???

PropertiesAnalyzerBingPreviewChromeEdgeFirefoxIESafariSamsungBrowserSFiveYandexBot
constructor??? 87.0.658??????
createSession??? 87.0.658??????
keySystem??? 87.0.658??????