[idlharness.worker.html]
  [ImageBitmapRenderingContext interface: operation transferFromImageBitmap(ImageBitmap)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation lineTo(unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute globalAlpha]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: self must inherit property "onmessageerror" with the proper type]
    expected: FAIL

  [MessagePort interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute filter]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation measureText(DOMString)]
    expected: FAIL

  [MessagePort interface: attribute onmessage]
    expected: FAIL

  [ImageBitmapRenderingContext interface: existence and properties of interface object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute imageSmoothingEnabled]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute shadowOffsetX]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute shadowOffsetY]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute strokeStyle]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface object length]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation clearRect(unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation getLineDash()]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute globalCompositeOperation]
    expected: FAIL

  [WorkerGlobalScope interface: calling createImageBitmap(ImageBitmapSource, long, long, long, long, ImageBitmapOptions) on self with too few arguments must throw TypeError]
    expected: FAIL

  [WorkerGlobalScope interface: operation createImageBitmap(ImageBitmapSource, long, long, long, long, ImageBitmapOptions)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation getImageData(long, long, long, long)]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "onlanguagechange" with the proper type]
    expected: FAIL

  [MessagePort interface: attribute onmessageerror]
    expected: FAIL

  [WorkerNavigator interface: attribute languages]
    expected: FAIL

  [MessagePort interface object length]
    expected: FAIL

  [DOMStringList interface object length]
    expected: FAIL

  [DOMStringList interface: operation item(unsigned long)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation strokeText(DOMString, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation restore()]
    expected: FAIL

  [PromiseRejectionEvent interface object length]
    expected: FAIL

  [WorkerGlobalScope interface: calling createImageBitmap(ImageBitmapSource, ImageBitmapOptions) on self with too few arguments must throw TypeError]
    expected: FAIL

  [ImageBitmapRenderingContext interface: existence and properties of interface prototype object]
    expected: FAIL

  [MessagePort interface: existence and properties of interface prototype object]
    expected: FAIL

  [Path2D interface: existence and properties of interface object]
    expected: FAIL

  [SharedWorker interface: existence and properties of interface object]
    expected: FAIL

  [TextMetrics interface object length]
    expected: FAIL

  [TextMetrics interface: attribute emHeightAscent]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "ononline" with the proper type]
    expected: FAIL

  [BroadcastChannel interface: operation close()]
    expected: FAIL

  [MessageChannel interface: existence and properties of interface object]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: calling requestAnimationFrame(FrameRequestCallback) on self with too few arguments must throw TypeError]
    expected: FAIL

  [TextMetrics interface: attribute ideographicBaseline]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation beginPath()]
    expected: FAIL

  [MessageEvent interface: calling initMessageEvent(DOMString, boolean, boolean, any, USVString, DOMString, MessageEventSource, [object Object\]) on new MessageEvent("message", { data: 5 }) with too few arguments must throw TypeError]
    expected: FAIL

  [MessageChannel interface: attribute port1]
    expected: FAIL

  [MessageChannel interface: attribute port2]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute lineWidth]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute shadowColor]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "queueMicrotask(VoidFunction)" with the proper type]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: attribute name]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation isPointInStroke(unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvas interface: existence and properties of interface object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation fill(CanvasFillRule)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation drawImage(CanvasImageSource, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [WorkerNavigator interface: self.navigator must inherit property "onLine" with the proper type]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation translate(unrestricted double, unrestricted double)]
    expected: FAIL

  [WorkerGlobalScope interface: operation queueMicrotask(VoidFunction)]
    expected: FAIL

  [Path2D interface: operation moveTo(unrestricted double, unrestricted double)]
    expected: FAIL

  [MessageChannel interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [TextMetrics interface: attribute actualBoundingBoxAscent]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation bezierCurveTo(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [BroadcastChannel interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [OffscreenCanvas interface: existence and properties of interface prototype object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation stroke(Path2D)]
    expected: FAIL

  [DOMStringList interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [ImageBitmap interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [TextMetrics interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [MessagePort interface: existence and properties of interface object]
    expected: FAIL

  [Path2D interface object name]
    expected: FAIL

  [MessageEvent interface: operation initMessageEvent(DOMString, boolean, boolean, any, USVString, DOMString, MessageEventSource, [object Object\])]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation quadraticCurveTo(unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "onrejectionhandled" with the proper type]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "createImageBitmap(ImageBitmapSource, ImageBitmapOptions)" with the proper type]
    expected: FAIL

  [WorkerGlobalScope interface: calling queueMicrotask(VoidFunction) on self with too few arguments must throw TypeError]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: self must inherit property "cancelAnimationFrame(unsigned long)" with the proper type]
    expected: FAIL

  [PromiseRejectionEvent interface: attribute promise]
    expected: FAIL

  [SharedWorker interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation resetTransform()]
    expected: FAIL

  [OffscreenCanvas interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute imageSmoothingQuality]
    expected: FAIL

  [Path2D interface object length]
    expected: FAIL

  [TextMetrics interface: attribute emHeightDescent]
    expected: FAIL

  [WorkerGlobalScope interface: operation createImageBitmap(ImageBitmapSource, ImageBitmapOptions)]
    expected: FAIL

  [BroadcastChannel interface: attribute name]
    expected: FAIL

  [Path2D interface: existence and properties of interface prototype object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation fillText(DOMString, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation drawImage(CanvasImageSource, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [CanvasPattern interface: operation setTransform(DOMMatrix2DInit)]
    expected: FAIL

  [Path2D interface: operation quadraticCurveTo(unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [MessageEvent interface: new MessageEvent("message", { data: 5 }) must inherit property "initMessageEvent(DOMString, boolean, boolean, any, USVString, DOMString, MessageEventSource, [object Object\])" with the proper type]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute lineCap]
    expected: FAIL

  [ImageBitmapRenderingContext interface: attribute canvas]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation scale(unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvas interface: attribute width]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: internal [[SetPrototypeOf\]\] method of interface prototype object - setting to a new value via Reflect.setPrototypeOf should return false]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation stroke()]
    expected: FAIL

  [WorkerGlobalScope interface: attribute onunhandledrejection]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute lineJoin]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation rect(unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [ImageBitmap interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [WebSocket interface: attribute extensions]
    expected: FAIL

  [ImageBitmapRenderingContext interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: attribute onmessageerror]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute direction]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute shadowBlur]
    expected: FAIL

  [Path2D interface: operation rect(unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [TextMetrics interface: attribute actualBoundingBoxDescent]
    expected: FAIL

  [Path2D interface: operation arc(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, boolean)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation isPointInPath(unrestricted double, unrestricted double, CanvasFillRule)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: existence and properties of interface prototype object]
    expected: FAIL

  [TextMetrics interface: attribute actualBoundingBoxLeft]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: internal [[SetPrototypeOf\]\] method of interface prototype object - setting to a new value via __proto__ should throw a TypeError]
    expected: FAIL

  [OffscreenCanvas interface: attribute height]
    expected: FAIL

  [BroadcastChannel interface: existence and properties of interface prototype object]
    expected: FAIL

  [ImageBitmap interface object name]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation setTransform(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [DOMStringList interface: existence and properties of interface object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface object name]
    expected: FAIL

  [WorkerNavigator interface: attribute onLine]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation drawImage(CanvasImageSource, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute miterLimit]
    expected: FAIL

  [MessageChannel interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation strokeRect(unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: existence and properties of interface object]
    expected: FAIL

  [MessageChannel interface object length]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation commit()]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation getTransform()]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "onoffline" with the proper type]
    expected: FAIL

  [MessageEvent interface: attribute ports]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute lineDashOffset]
    expected: FAIL

  [WorkerNavigator interface: self.navigator must inherit property "hardwareConcurrency" with the proper type]
    expected: FAIL

  [BroadcastChannel interface: existence and properties of interface object]
    expected: FAIL

  [ImageBitmapRenderingContext interface object name]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation isPointInPath(Path2D, unrestricted double, unrestricted double, CanvasFillRule)]
    expected: FAIL

  [TextMetrics interface: existence and properties of interface object]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: self must inherit property "name" with the proper type]
    expected: FAIL

  [History interface: existence and properties of interface object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation createImageData(long, long)]
    expected: FAIL

  [ImageBitmap interface: existence and properties of interface prototype object]
    expected: FAIL

  [SharedWorker interface object length]
    expected: FAIL

  [Path2D interface: operation lineTo(unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation createLinearGradient(double, double, double, double)]
    expected: FAIL

  [WorkerGlobalScope interface: attribute onrejectionhandled]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation createImageData(ImageData)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute font]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation putImageData(ImageData, long, long, long, long, long, long)]
    expected: FAIL

  [DOMStringList interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [WorkerNavigator interface: member taintEnabled]
    expected: FAIL

  [DOMStringList interface: operation contains(DOMString)]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: calling cancelAnimationFrame(unsigned long) on self with too few arguments must throw TypeError]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation moveTo(unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvas interface object length]
    expected: FAIL

  [TextMetrics interface: attribute hangingBaseline]
    expected: FAIL

  [ImageBitmapRenderingContext interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [Path2D interface: operation closePath()]
    expected: FAIL

  [WorkerGlobalScope interface: attribute onoffline]
    expected: FAIL

  [TextMetrics interface: attribute width]
    expected: FAIL

  [Path2D interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [TextMetrics interface: attribute actualBoundingBoxRight]
    expected: FAIL

  [TextMetrics interface: attribute fontBoundingBoxAscent]
    expected: FAIL

  [MessageChannel interface: existence and properties of interface prototype object]
    expected: FAIL

  [MessagePort interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation createPattern(CanvasImageSource, DOMString)]
    expected: FAIL

  [ImageBitmap interface: existence and properties of interface object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation transform(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation rotate(unrestricted double)]
    expected: FAIL

  [SharedWorker interface: existence and properties of interface prototype object]
    expected: FAIL

  [TextMetrics interface: attribute alphabeticBaseline]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: internal [[SetPrototypeOf\]\] method of interface prototype object - setting to a new value via Object.setPrototypeOf should throw a TypeError]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation setTransform(DOMMatrix2DInit)]
    expected: FAIL

  [ImageBitmap interface: operation close()]
    expected: FAIL

  [TextMetrics interface: existence and properties of interface prototype object]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation fill(Path2D, CanvasFillRule)]
    expected: FAIL

  [BroadcastChannel interface: attribute onmessage]
    expected: FAIL

  [DOMStringList interface: existence and properties of interface prototype object]
    expected: FAIL

  [Path2D interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation createRadialGradient(double, double, double, double, double, double)]
    expected: FAIL

  [WorkerGlobalScope interface: attribute onlanguagechange]
    expected: FAIL

  [OffscreenCanvas interface object name]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "onunhandledrejection" with the proper type]
    expected: FAIL

  [DOMStringList interface: attribute length]
    expected: FAIL

  [Path2D interface: operation ellipse(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, boolean)]
    expected: FAIL

  [MessageEvent interface: new MessageEvent("message", { data: 5 }) must inherit property "ports" with the proper type]
    expected: FAIL

  [TextMetrics interface: attribute fontBoundingBoxDescent]
    expected: FAIL

  [WorkerGlobalScope interface: attribute ononline]
    expected: FAIL

  [DOMStringList interface object name]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute textBaseline]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation isPointInStroke(Path2D, unrestricted double, unrestricted double)]
    expected: FAIL

  [BroadcastChannel interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute textAlign]
    expected: FAIL

  [OffscreenCanvas interface: operation transferToImageBitmap()]
    expected: FAIL

  [WorkerNavigator interface: attribute hardwareConcurrency]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation arcTo(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [BroadcastChannel interface: attribute onmessageerror]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation closePath()]
    expected: FAIL

  [Path2D interface: operation arcTo(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation setLineDash([object Object\])]
    expected: FAIL

  [ImageBitmap interface: attribute width]
    expected: FAIL

  [BroadcastChannel interface: operation postMessage(any)]
    expected: FAIL

  [MessageChannel interface object name]
    expected: FAIL

  [SharedWorker interface: attribute port]
    expected: FAIL

  [MessagePort interface: operation postMessage(any, [object Object\])]
    expected: FAIL

  [WorkerNavigator interface: self.navigator must not have property "taintEnabled"]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation arc(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, boolean)]
    expected: FAIL

  [TextMetrics interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [SharedWorker interface: attribute onerror]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: self must inherit property "requestAnimationFrame(FrameRequestCallback)" with the proper type]
    expected: FAIL

  [SharedWorker interface object name]
    expected: FAIL

  [MessagePort interface object name]
    expected: FAIL

  [OffscreenCanvas interface: operation getContext(OffscreenRenderingContextId, any)]
    expected: FAIL

  [Path2D interface: operation bezierCurveTo(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute fillStyle]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: attribute canvas]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation ellipse(unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, unrestricted double, boolean)]
    expected: FAIL

  [BroadcastChannel interface object name]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation putImageData(ImageData, long, long)]
    expected: FAIL

  [ImageBitmapRenderingContext interface object length]
    expected: FAIL

  [Path2D interface: operation addPath(Path2D, DOMMatrix2DInit)]
    expected: FAIL

  [SharedWorker interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: operation cancelAnimationFrame(unsigned long)]
    expected: FAIL

  [WorkerGlobalScope interface: self must inherit property "createImageBitmap(ImageBitmapSource, long, long, long, long, ImageBitmapOptions)" with the proper type]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation save()]
    expected: FAIL

  [DedicatedWorkerGlobalScope interface: operation requestAnimationFrame(FrameRequestCallback)]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation clip(Path2D, CanvasFillRule)]
    expected: FAIL

  [MessagePort interface: operation postMessage(any, PostMessageOptions)]
    expected: FAIL

  [MessagePort interface: operation start()]
    expected: FAIL

  [MessagePort interface: operation close()]
    expected: FAIL

  [WebSocket interface: new WebSocket("ws://foo") must inherit property "extensions" with the proper type]
    expected: FAIL

  [OffscreenCanvas interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [ImageBitmap interface: attribute height]
    expected: FAIL

  [WorkerNavigator interface: self.navigator must inherit property "languages" with the proper type]
    expected: FAIL

  [ImageBitmap interface object length]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation fillRect(unrestricted double, unrestricted double, unrestricted double, unrestricted double)]
    expected: FAIL

  [OffscreenCanvas interface: operation convertToBlob(ImageEncodeOptions)]
    expected: FAIL

  [BroadcastChannel interface object length]
    expected: FAIL

  [OffscreenCanvasRenderingContext2D interface: operation clip(CanvasFillRule)]
    expected: FAIL

  [TextMetrics interface object name]
    expected: FAIL

  [MessageEvent interface: new MessageEvent("message", { data: 5 }) must inherit property "source" with the proper type]
    expected: FAIL