diff --git a/packages/core/src/textures/resources/CanvasResource.js b/packages/core/src/textures/resources/CanvasResource.js
index 68252b8..a73fc5e 100644
--- a/packages/core/src/textures/resources/CanvasResource.js
+++ b/packages/core/src/textures/resources/CanvasResource.js
@@ -18,9 +18,14 @@
      */
     static test(source)
     {
-        return (source && (
-            source instanceof HTMLCanvasElement
-            || source instanceof window.OffscreenCanvas
-        ));
+        const { OffscreenCanvas } = window;
+
+        // Check for browsers that don't yet support OffscreenCanvas
+        if (OffscreenCanvas && source instanceof OffscreenCanvas)
+        {
+            return true;
+        }
+
+        return source instanceof HTMLCanvasElement;
     }
 }