From ee935cc68c5628e3293638f3e46a47ab2e7726b3 Mon Sep 17 00:00:00 2001
From: Daniel Imms <daimms@microsoft.com>
Date: Tue, 12 Jun 2018 17:27:36 +0200
Subject: [PATCH] Add a null check to charatlas beginFrame call

Fixes #1511
---
 src/renderer/TextRenderLayer.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/renderer/TextRenderLayer.ts b/src/renderer/TextRenderLayer.ts
index d6f96936..f48c2561 100644
--- a/src/renderer/TextRenderLayer.ts
+++ b/src/renderer/TextRenderLayer.ts
@@ -208,7 +208,9 @@ export class TextRenderLayer extends BaseRenderLayer {
       return;
     }
 
-    this._charAtlas.beginFrame();
+    if (this._charAtlas) {
+      this._charAtlas.beginFrame();
+    }
 
     this.clearCells(0, firstRow, terminal.cols, lastRow - firstRow + 1);
     this._drawBackground(terminal, firstRow, lastRow);