diff --git a/html/canvas/tools/yaml-new/compositing.yaml b/html/canvas/tools/yaml-new/compositing.yaml
index 0051f07db23132..bd7fae1d629118 100644
--- a/html/canvas/tools/yaml-new/compositing.yaml
+++ b/html/canvas/tools/yaml-new/compositing.yaml
@@ -173,7 +173,7 @@
   expected: green
 
 - name: 2d.composite.globalAlpha.canvas
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     var offscreenCanvas2 = new OffscreenCanvas(100, 50);
     var ctx2 = offscreenCanvas2.getContext('2d');
@@ -203,7 +203,7 @@
   expected: green
 
 - name: 2d.composite.globalAlpha.canvaspattern
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     var offscreenCanvas2 = new OffscreenCanvas(100, 50);
     var ctx2 = offscreenCanvas2.getContext('2d');
@@ -218,7 +218,7 @@
     @assert pixel 50,25 ==~ 2,253,0,255;
 
 - name: 2d.composite.globalAlpha.canvascopy
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     var offscreenCanvas2 = new OffscreenCanvas(100, 50);
     var ctx2 = offscreenCanvas2.getContext('2d');
diff --git a/html/canvas/tools/yaml-new/drawing-images-to-the-canvas.yaml b/html/canvas/tools/yaml-new/drawing-images-to-the-canvas.yaml
index e1837342e6a54d..75eed14ee63c84 100644
--- a/html/canvas/tools/yaml-new/drawing-images-to-the-canvas.yaml
+++ b/html/canvas/tools/yaml-new/drawing-images-to-the-canvas.yaml
@@ -343,7 +343,7 @@
     @assert pixel 99,49 ==~ 0,255,0,255;
 
 - name: 2d.drawImage.canvas
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     var offscreenCanvas2 = new OffscreenCanvas(100, 50);
     var ctx2 = offscreenCanvas2.getContext('2d');
@@ -357,7 +357,7 @@
     @assert pixel 99,49 ==~ 0,255,0,255;
 
 - name: 2d.drawImage.zerocanvas
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     var offscreenCanvas2 = new OffscreenCanvas(0, 10);
     @assert throws INVALID_STATE_ERR ctx.drawImage(offscreenCanvas2, 0, 0);
@@ -424,7 +424,7 @@
 - name: 2d.drawImage.zerosource.image
   desc: drawImage with zero-sized source rectangle from image draws nothing without exception
   test_type: promise
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     ctx.fillStyle = '#0f0';
     ctx.fillRect(0, 0, 100, 50);
@@ -519,7 +519,7 @@
 
 - name: 2d.drawImage.outsidesource
   DISABLED: fix this to match the current spec (transparent black outside source)
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     const response_red = await fetch('/images/red.png');
     const blob_red = await response_red.blob();
@@ -572,7 +572,7 @@
 - name: 2d.drawImage.svg
   desc: drawImage() of an SVG image
   test_type: promise
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     var promise = new Promise(function(resolve, reject) {
       var xhr = new XMLHttpRequest();
diff --git a/html/canvas/tools/yaml-new/filters.yaml b/html/canvas/tools/yaml-new/filters.yaml
index dd84f913f9ba04..9a90bed24820b7 100644
--- a/html/canvas/tools/yaml-new/filters.yaml
+++ b/html/canvas/tools/yaml-new/filters.yaml
@@ -61,7 +61,7 @@
 
 - name: 2d.filter.canvasFilterObject.tentative
   desc: Test CanvasFilter() object
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     @assert ctx.filter == 'none';
     ctx.filter = 'blur(5px)';
diff --git a/html/canvas/tools/yaml-new/layers.yaml b/html/canvas/tools/yaml-new/layers.yaml
index fe1902c61b7548..e0d2b3d793b80d 100644
--- a/html/canvas/tools/yaml-new/layers.yaml
+++ b/html/canvas/tools/yaml-new/layers.yaml
@@ -317,7 +317,7 @@
   variants:
     convertToBlob:
       test_type: "promise"
-      canvasType: ['OffscreenCanvas']
+      canvasType: ['OffscreenCanvas', 'Worker']
       flush_canvas: |-
         await canvas.convertToBlob();
     createImageBitmap:
@@ -352,7 +352,7 @@
 - name: 2d.layer.render-opportunities.transferToImageBitmap
   desc: Checks that transferToImageBitmap flushes and rebuilds the state stack.
   size: 200, 200
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     ctx.fillStyle = 'purple';
     ctx.fillRect(60, 60, 75, 50);
diff --git a/html/canvas/tools/yaml-new/pixel-manipulation.yaml b/html/canvas/tools/yaml-new/pixel-manipulation.yaml
index b9bdf3d2bdb5ca..0643b047b173f1 100644
--- a/html/canvas/tools/yaml-new/pixel-manipulation.yaml
+++ b/html/canvas/tools/yaml-new/pixel-manipulation.yaml
@@ -818,7 +818,7 @@
 
 - name: 2d.imageData.put.cross
   desc: putImageData() accepts image data got from a different canvas
-  canvasType: ['OffscreenCanvas']
+  canvasType: ['OffscreenCanvas', 'Worker']
   code: |
     var offscreenCanvas2 = new OffscreenCanvas(100, 50);
     var ctx2 = offscreenCanvas2.getContext('2d');