| webkitRequestFileSystem | |
| totalJSHeapSize | |
| usedJSHeapSize | |
| jsHeapSizeLimit | |
| canPlayType("audio/flac") | |
| canPlayType("audio/mp4;codecs=ec-3") | |
| canPlayType("audio/mpeg") | |
| canPlayType("audio/aac") | |
| canPlayType("audio/webm;codecs=opus") | |
| canPlayType("video/mp4;codecs=flac") | |
| canPlayType("video/mp4") | |
| canPlayType("video/mpeg") | |
| canPlayType("video/ogg;codecs=opus") | |
| KeyboardLayoutMap.size | |
| KeyboardLayoutMap.values | |
| battery.level | |
| userAgent | |
| mediaDevices.enumerateDevices | |
| VisualViewport.scale | |
| Window.Selection | |
| Window.Gyroscope | |
| Window.webkitSpeechRecognition | |
| Window.WebGL2RenderingContext | |
| Window.webkitRTCPeerConnection | |
| Window.WebGLRenderingContext | |
| Window.PresentationConnection | |
| Window.SVGAnimatedLengthList | |
| Window.CanvasRenderingContext2D | |
| Window.XRInputSourcesChangeEvent | |
| Window.UIEvent | |
| Window.SVGFECompositeElement | |
| Window.MIDIOutputMap | |
| Window.USBAlternateInterface | |
| Window.Element | |
| Window.HTMLFrameSetElement | |
| Window.WebTransportBidirectionalStream | |
| Window.SensorErrorEvent |