BrowserVersionOwn?TypeAs String
Chrome85.0.4183???
CriOS85.0.4183???
Edge86.0.622???
Edge87.0.658ownfunctionfunction MSMediaKeySession() { [native code] }
Edge88.0.670???
Firefox68.0.0???
IE10.0.0???
IE11.0.0ownobject[object MSMediaKeySession]
KomodiaBot1.0.0???
Safari10.1.2???

PropertiesChromeCriOSEdgeFirefoxIEKomodiaBotSafari
length?? 87.0.658????
prototype?? 87.0.658? 11.0.0??