fix: 增加判空

Author: xuying.xu

packages/f-my/src/index.tsx

@@ -175,8 +175,11 @@ Component({
         isMouseEvent: (e) => e.type.startsWith('mouse'),
       });
       this.canvas = canvas;
-      // @ts-ignore g里面caf透传不了，暂时解决
-      canvas.canvas.context.config.cancelAnimationFrame = cancelAnimationFrame;
+      // @ts-ignore
+      if (canvas.canvas?.context?.config) {
+        // @ts-ignore g里面caf透传不了，暂时解决
+        canvas.canvas.context.config.cancelAnimationFrame = cancelAnimationFrame;
+      }
       this.canvasEl = canvas.getCanvasEl();
       return canvas;
     },