BrowserVersionOwn?TypeAs String
BingPreview1.0.0???
browser97.0.206???
CensysInspect1.1.0???
Chrome30.0.1599???
Edge12.246.0???
Firefox32.0.0???
FxiOS36.0.0???
Safari14.0.0???
Scrutiny9.0.0???

PropertiesBingPreviewbrowserCensysInspectChromeEdgeFirefoxFxiOSSafariScrutiny
COMPRESSED_RGBA_S3TC_DXT1_EXT?????????
COMPRESSED_RGBA_S3TC_DXT3_EXT?????????
COMPRESSED_RGBA_S3TC_DXT5_EXT?????????
COMPRESSED_RGB_S3TC_DXT1_EXT?????????
prototype?????????