src/components/CanvasBoard.vue

@@ -81,19 +81,10 @@
     store.renderer.ctx = store.renderer.canvas.getContext("2d", {
       willReadFrequently: true,
     });
-    if (typeof OffscreenCanvas != "undefined") {
-      store.renderer.workCanvas = new OffscreenCanvas(
-        canvas.parentElement.clientWidth,
-        canvas.parentElement.clientHeight
-      );
-    }
-    // https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas/OffscreenCanvas#Browser_compatibility
-    // Fallback for when offscreenCanvas is unsupported or disabled (Firefox < 44, default for Firefox?)
-    else {
-      store.renderer.workCanvas = document.createElement("canvas");
-      store.renderer.workCanvas.width = canvas.parentElement.clientWidth;
-      store.renderer.workCanvas.height = canvas.parentElement.clientHeight;
-    }
+    store.renderer.workCanvas = new OffscreenCanvas(
+      canvas.parentElement.clientWidth,
+      canvas.parentElement.clientHeight
+    );
     store.renderer.workCtx = store.renderer.workCanvas.getContext("2d", {
       willReadFrequently: true,
     });