From b5ba9ae771bbe901431826fb8e0b8663add12433 Mon Sep 17 00:00:00 2001
From: Oleksandr Andriienko <oandriie@redhat.com>
Date: Mon, 12 Feb 2018 12:30:26 +0200
Subject: [PATCH] Fix xterm.js in headless mode yields TypeError on resize

Signed-off-by: Oleksandr Andriienko <oandriie@redhat.com>
---
 src/Terminal.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Terminal.ts b/src/Terminal.ts
index 1bc9cfbb..9f8bc433 100644
--- a/src/Terminal.ts
+++ b/src/Terminal.ts
@@ -1889,7 +1889,9 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.rows = y;
     this.buffers.setupTabStops(this.cols);
 
-    this.charMeasure.measure(this.options);
+    if (this.charMeasure) {
+      this.charMeasure.measure(this.options);
+    }
 
     this.refresh(0, this.rows - 1);
     this.emit('resize', {cols: x, rows: y});