BrowserVersionOwn?TypeAs String
Chrome85.0.4183???
Edge86.0.622???
Edge87.0.658ownfunctionfunction MSMediaEncryptedEvent() { [native code] }
Edge88.0.670???
Firefox68.0.0???
IE10.0.0???
Safari10.1.2???

PropertiesChromeEdgeFirefoxIESafari
AT_TARGET? 87.0.658???
BUBBLING_PHASE? 87.0.658???
CAPTURING_PHASE? 87.0.658???
length? 87.0.658???
NONE? 87.0.658???
prototype? 87.0.658???