From 707d6a44ef8818dc2d3745bfc12d998ba299ab26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?William=20Ant=C3=B4nio=20Siqueira?=
 <william.fatecsjc@gmail.com>
Date: Tue, 1 Dec 2020 17:43:13 -0300
Subject: [PATCH] Cast color stop offset to number

Will parse the offset to number so heatmap.js can be used with local jest tests (canvas node implementation).
closes #330
---
 src/renderer/canvas2d.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/renderer/canvas2d.js b/src/renderer/canvas2d.js
index 259c8d14..e86cfe40 100644
--- a/src/renderer/canvas2d.js
+++ b/src/renderer/canvas2d.js
@@ -11,7 +11,7 @@ var Canvas2dRenderer = (function Canvas2dRendererClosure() {
 
     var gradient = paletteCtx.createLinearGradient(0, 0, 256, 1);
     for (var key in gradientConfig) {
-      gradient.addColorStop(key, gradientConfig[key]);
+      gradient.addColorStop(+key, gradientConfig[key]);
     }
 
     paletteCtx.fillStyle = gradient;