diff --git a/sample/a-buffer/main.ts b/sample/a-buffer/main.ts
index dffb5b3d..bd768489 100644
--- a/sample/a-buffer/main.ts
+++ b/sample/a-buffer/main.ts
@@ -23,7 +23,7 @@ const device = await adapter?.requestDevice({
 });
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const presentationFormat = navigator.gpu.getPreferredCanvasFormat();
 
 context.configure({
diff --git a/sample/animometer/main.ts b/sample/animometer/main.ts
index 77c38153..56769f80 100644
--- a/sample/animometer/main.ts
+++ b/sample/animometer/main.ts
@@ -31,7 +31,7 @@ const settings = {
   dynamicOffsets: Boolean(params.get('dynamicOffsets')),
 };
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/bitonicSort/utils.ts b/sample/bitonicSort/utils.ts
index e25775e5..98b59a27 100644
--- a/sample/bitonicSort/utils.ts
+++ b/sample/bitonicSort/utils.ts
@@ -134,7 +134,7 @@ export const SampleInitFactoryWebGPU = async (
     });
     quitIfWebGPUNotAvailable(adapter, device);
 
-    const context = canvas.getContext('webgpu') as GPUCanvasContext;
+    const context = canvas.getContext('webgpu');
     const devicePixelRatio = window.devicePixelRatio;
     canvas.width = canvas.clientWidth * devicePixelRatio;
     canvas.height = canvas.clientHeight * devicePixelRatio;
diff --git a/sample/cameras/main.ts b/sample/cameras/main.ts
index dcd2fdef..0c32f115 100644
--- a/sample/cameras/main.ts
+++ b/sample/cameras/main.ts
@@ -45,7 +45,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 });
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/computeBoids/main.ts b/sample/computeBoids/main.ts
index 088f88d4..a757e8dd 100644
--- a/sample/computeBoids/main.ts
+++ b/sample/computeBoids/main.ts
@@ -32,7 +32,7 @@ if (canvas.parentNode) {
   console.error('canvas.parentNode is null');
 }
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
 canvas.height = canvas.clientHeight * devicePixelRatio;
diff --git a/sample/cornell/main.ts b/sample/cornell/main.ts
index 83be8677..a74e4c13 100644
--- a/sample/cornell/main.ts
+++ b/sample/cornell/main.ts
@@ -56,7 +56,7 @@ const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
 canvas.height = canvas.clientHeight * devicePixelRatio;
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 context.configure({
   device,
   format: presentationFormat,
diff --git a/sample/cubemap/main.ts b/sample/cubemap/main.ts
index 06dc6613..57b3fe9b 100644
--- a/sample/cubemap/main.ts
+++ b/sample/cubemap/main.ts
@@ -19,7 +19,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/deferredRendering/main.ts b/sample/deferredRendering/main.ts
index a0d99603..4f0e3469 100644
--- a/sample/deferredRendering/main.ts
+++ b/sample/deferredRendering/main.ts
@@ -25,7 +25,7 @@ const device = await adapter?.requestDevice({
 });
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/fractalCube/main.ts b/sample/fractalCube/main.ts
index c6f98e73..1e1c16bc 100644
--- a/sample/fractalCube/main.ts
+++ b/sample/fractalCube/main.ts
@@ -19,7 +19,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/gameOfLife/main.ts b/sample/gameOfLife/main.ts
index 363485e4..5876bb5a 100644
--- a/sample/gameOfLife/main.ts
+++ b/sample/gameOfLife/main.ts
@@ -11,7 +11,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
 canvas.height = canvas.clientHeight * devicePixelRatio;
diff --git a/sample/generateMipmap/main.ts b/sample/generateMipmap/main.ts
index a2c02b3c..eb47d57c 100644
--- a/sample/generateMipmap/main.ts
+++ b/sample/generateMipmap/main.ts
@@ -28,7 +28,7 @@ const device = await adapter?.requestDevice({
 quitIfWebGPUNotAvailable(adapter, device);
 
 const canvas = document.querySelector('canvas') as HTMLCanvasElement;
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
 canvas.height = canvas.clientHeight * devicePixelRatio;
diff --git a/sample/helloTriangle/main.ts b/sample/helloTriangle/main.ts
index 81e75d80..0730c4bb 100644
--- a/sample/helloTriangle/main.ts
+++ b/sample/helloTriangle/main.ts
@@ -9,7 +9,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/helloTriangleMSAA/main.ts b/sample/helloTriangleMSAA/main.ts
index e8783292..f59e34d0 100644
--- a/sample/helloTriangleMSAA/main.ts
+++ b/sample/helloTriangleMSAA/main.ts
@@ -9,7 +9,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/imageBlur/main.ts b/sample/imageBlur/main.ts
index dfb4c96c..19ce3e42 100644
--- a/sample/imageBlur/main.ts
+++ b/sample/imageBlur/main.ts
@@ -14,7 +14,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/instancedCube/main.ts b/sample/instancedCube/main.ts
index ab51cf89..6c8b3238 100644
--- a/sample/instancedCube/main.ts
+++ b/sample/instancedCube/main.ts
@@ -19,7 +19,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/normalMap/main.ts b/sample/normalMap/main.ts
index 253ab69b..7ade2b11 100644
--- a/sample/normalMap/main.ts
+++ b/sample/normalMap/main.ts
@@ -23,7 +23,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 });
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
 canvas.height = canvas.clientHeight * devicePixelRatio;
diff --git a/sample/occlusionQuery/main.ts b/sample/occlusionQuery/main.ts
index 95b19cda..cf25c152 100644
--- a/sample/occlusionQuery/main.ts
+++ b/sample/occlusionQuery/main.ts
@@ -38,7 +38,7 @@ const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
 const canvas = document.querySelector('canvas') as HTMLCanvasElement;
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
 canvas.height = canvas.clientHeight * devicePixelRatio;
diff --git a/sample/particles/main.ts b/sample/particles/main.ts
index 3f2a8f04..e3bf96f6 100644
--- a/sample/particles/main.ts
+++ b/sample/particles/main.ts
@@ -23,7 +23,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/renderBundles/main.ts b/sample/renderBundles/main.ts
index 1232d994..cc53b10c 100644
--- a/sample/renderBundles/main.ts
+++ b/sample/renderBundles/main.ts
@@ -32,7 +32,7 @@ gui.add(settings, 'asteroidCount', 1000, 10000, 1000).onChange(() => {
   updateRenderBundle();
 });
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/resizeCanvas/main.ts b/sample/resizeCanvas/main.ts
index 1d5dc674..50fa33c6 100644
--- a/sample/resizeCanvas/main.ts
+++ b/sample/resizeCanvas/main.ts
@@ -9,7 +9,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const presentationFormat = navigator.gpu.getPreferredCanvasFormat();
 
diff --git a/sample/resizeObserverHDDPI/main.ts b/sample/resizeObserverHDDPI/main.ts
index 65eef702..ba1cd462 100644
--- a/sample/resizeObserverHDDPI/main.ts
+++ b/sample/resizeObserverHDDPI/main.ts
@@ -9,7 +9,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const presentationFormat = navigator.gpu.getPreferredCanvasFormat();
 
diff --git a/sample/reversedZ/main.ts b/sample/reversedZ/main.ts
index 14ec31ef..89d03b8a 100644
--- a/sample/reversedZ/main.ts
+++ b/sample/reversedZ/main.ts
@@ -72,7 +72,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/rotatingCube/main.ts b/sample/rotatingCube/main.ts
index ccdf5685..a990d9ad 100644
--- a/sample/rotatingCube/main.ts
+++ b/sample/rotatingCube/main.ts
@@ -19,7 +19,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/samplerParameters/main.ts b/sample/samplerParameters/main.ts
index 984dc92e..301ec7c3 100644
--- a/sample/samplerParameters/main.ts
+++ b/sample/samplerParameters/main.ts
@@ -176,7 +176,7 @@ canvas.width = canvas.height = kCanvasSize;
 canvas.style.minWidth = canvas.style.maxWidth = kCanvasCSSSize + 'px';
 const presentationFormat = navigator.gpu.getPreferredCanvasFormat();
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 context.configure({
   device,
   format: presentationFormat,
diff --git a/sample/shadowMapping/main.ts b/sample/shadowMapping/main.ts
index dc5069db..38bda515 100644
--- a/sample/shadowMapping/main.ts
+++ b/sample/shadowMapping/main.ts
@@ -15,7 +15,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/skinnedMesh/main.ts b/sample/skinnedMesh/main.ts
index 62a6f379..fba179e8 100644
--- a/sample/skinnedMesh/main.ts
+++ b/sample/skinnedMesh/main.ts
@@ -105,7 +105,7 @@ const device = await adapter?.requestDevice({
 });
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio || 1;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/textRenderingMsdf/main.ts b/sample/textRenderingMsdf/main.ts
index 7041c92e..f641d6b1 100644
--- a/sample/textRenderingMsdf/main.ts
+++ b/sample/textRenderingMsdf/main.ts
@@ -25,7 +25,7 @@ const device = await adapter?.requestDevice({
 });
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio || 1;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/texturedCube/main.ts b/sample/texturedCube/main.ts
index cefbf80b..63315e37 100644
--- a/sample/texturedCube/main.ts
+++ b/sample/texturedCube/main.ts
@@ -19,7 +19,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/timestampQuery/main.ts b/sample/timestampQuery/main.ts
index b35d853c..f4234149 100644
--- a/sample/timestampQuery/main.ts
+++ b/sample/timestampQuery/main.ts
@@ -46,7 +46,7 @@ const timestampQueryManager = new TimestampQueryManager(device, (elapsedNs) => {
 
 const renderPassDurationCounter = new PerfCounter();
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/transparentCanvas/main.ts b/sample/transparentCanvas/main.ts
index d67d0f80..b2ac4ca7 100644
--- a/sample/transparentCanvas/main.ts
+++ b/sample/transparentCanvas/main.ts
@@ -19,7 +19,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/twoCubes/main.ts b/sample/twoCubes/main.ts
index 6bd9bfe5..2b1e62dc 100644
--- a/sample/twoCubes/main.ts
+++ b/sample/twoCubes/main.ts
@@ -19,7 +19,7 @@ const adapter = await navigator.gpu?.requestAdapter({
 const device = await adapter?.requestDevice();
 quitIfWebGPUNotAvailable(adapter, device);
 
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
diff --git a/sample/videoUploading/main.ts b/sample/videoUploading/main.ts
index 8871a367..85b99de4 100644
--- a/sample/videoUploading/main.ts
+++ b/sample/videoUploading/main.ts
@@ -27,7 +27,7 @@ const videos = {
 } as const;
 
 const canvas = document.querySelector('canvas') as HTMLCanvasElement;
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const presentationFormat = navigator.gpu.getPreferredCanvasFormat();
 
 context.configure({
diff --git a/sample/volumeRenderingTexture3D/main.ts b/sample/volumeRenderingTexture3D/main.ts
index a6e75d78..c379632d 100644
--- a/sample/volumeRenderingTexture3D/main.ts
+++ b/sample/volumeRenderingTexture3D/main.ts
@@ -75,7 +75,7 @@ if (adapter?.features.has('texture-compression-astc-sliced-3d')) {
 const device = await adapter?.requestDevice({ requiredFeatures });
 
 quitIfWebGPUNotAvailable(adapter, device);
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 
 const sampleCount = 4;
 
diff --git a/sample/wireframe/main.ts b/sample/wireframe/main.ts
index 014f90eb..d0dd8089 100644
--- a/sample/wireframe/main.ts
+++ b/sample/wireframe/main.ts
@@ -72,7 +72,7 @@ const device = await adapter?.requestDevice({
 quitIfWebGPUNotAvailable(adapter, device);
 
 const canvas = document.querySelector('canvas') as HTMLCanvasElement;
-const context = canvas.getContext('webgpu') as GPUCanvasContext;
+const context = canvas.getContext('webgpu');
 const devicePixelRatio = window.devicePixelRatio;
 canvas.width = canvas.clientWidth * devicePixelRatio;
 canvas.height = canvas.clientHeight * devicePixelRatio;