From 8deecc33b52af712444a717816a89aac9df2dc35 Mon Sep 17 00:00:00 2001
From: Vladimir Mandic <mandic00@live.com>
Date: Sat, 20 Feb 2021 21:12:33 -0500
Subject: [PATCH] exception handling

---
 src/dom/imageToSquare.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/dom/imageToSquare.ts b/src/dom/imageToSquare.ts
index d0fcfbf..bba1c82 100644
--- a/src/dom/imageToSquare.ts
+++ b/src/dom/imageToSquare.ts
@@ -10,6 +10,7 @@ export function imageToSquare(input: HTMLImageElement | HTMLCanvasElement, input
     throw new Error('imageToSquare - expected arg0 to be HTMLImageElement | HTMLCanvasElement');
   }
 
+  if (inputSize <= 0) return createCanvas({ width: 1, height: 1 });
   const dims = getMediaDimensions(input);
   const scale = inputSize / Math.max(dims.height, dims.width);
   const width = scale * dims.width;