From 200b59b47ca3f77b3b0652d7e95e9ed2898f26dc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Breitbart?= <jerch@rockborn.de>
Date: Wed, 31 Oct 2018 15:35:30 +0100
Subject: [PATCH] fix canvas renderer

---
 src/renderer/TextRenderLayer.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/renderer/TextRenderLayer.ts b/src/renderer/TextRenderLayer.ts
index 7f10e7c9..08850b72 100644
--- a/src/renderer/TextRenderLayer.ts
+++ b/src/renderer/TextRenderLayer.ts
@@ -90,6 +90,11 @@ export class TextRenderLayer extends BaseRenderLayer {
           continue;
         }
 
+        // Simply skip empty cells...
+        if (!chars) {
+          continue;
+        }
+
         // Process any joined character ranges as needed. Because of how the
         // ranges are produced, we know that they are valid for the characters
         // and attributes of our input.