BrowserVersionOwn?TypeAs String
ALAFISH89.0.4389???
Chrome35.0.2309???
Edge17.17134.0???
Firefox51.0.0???
FxiOS33.0.0???
IE10.0.0???
Safari4.0.0???

PropertiesALAFISHChromeEdgeFirefoxFxiOSIESafari
ABORT_ERR???????
length???????
NETWORK_ERR???????
prototype???????