fix empty intrinsicSize

Author: ccheng-dev

src/render/canvas/canvas-renderer.ts

@@ -598,7 +598,7 @@ export class CanvasRenderer extends Renderer {
                     const [path, x, y, width, height] = calculateBackgroundRendering(container, index, [
                         image.width,
                         image.height,
-                        image.width / image.height
+                        (image.width / image.height) ?? 1
                     ]);
                     const pattern = this.ctx.createPattern(
                         this.resizeImage(image, width, height),

tsconfig.json

@@ -13,7 +13,7 @@
         "outDir": "dist/lib",
         "declaration": true,
         "declarationDir": "dist/types",
-        "resolveJsonModule": true
+        "resolveJsonModule": true,
     },
     "include": [
         "src"