diff --git a/package.json b/package.json
index cefd4369a..901ac4943 100644
--- a/package.json
+++ b/package.json
@@ -113,7 +113,8 @@
     "karma": "ts-node tests/karma",
     "watch": "rollup -c rollup.config.ts -w",
     "watch:unittest": "mocha --require ts-node/register --watch-extensions ts -w src/**/__tests__/*.ts",
-    "start": "ts-node tests/server --port=8080 --cors=8081"
+    "start": "ts-node tests/server --port=8080 --cors=8081",
+    "prepare": "npm run build"
   },
   "homepage": "https://html2canvas.hertzen.com",
   "license": "MIT",
diff --git a/src/render/background.ts b/src/render/background.ts
index 6e0e877ea..dd92d171a 100644
--- a/src/render/background.ts
+++ b/src/render/background.ts
@@ -58,7 +58,7 @@ export const calculateBackgroundRendering = (
         backgroundPositioningArea
     );
 
-    const [sizeWidth, sizeHeight] = backgroundImageSize;
+    let [sizeWidth, sizeHeight] = backgroundImageSize;
 
     const position = getAbsoluteValueForTuple(
         getBackgroundValueForIndex(container.styles.backgroundPosition, index),
@@ -77,6 +77,9 @@ export const calculateBackgroundRendering = (
     const offsetX = Math.round(backgroundPositioningArea.left + position[0]);
     const offsetY = Math.round(backgroundPositioningArea.top + position[1]);
 
+    sizeWidth = Math.max(1,sizeWidth)
+    sizeHeight = Math.max(1,sizeHeight)
+
     return [path, offsetX, offsetY, sizeWidth, sizeHeight];
 };