From 4fcd6149062935ed593a9fa360706003df163768 Mon Sep 17 00:00:00 2001
From: Johann <git@johann-hofmann.com>
Date: Sat, 11 Jul 2015 07:30:43 +0200
Subject: [PATCH] Add fallback for missing font option in canvas/text

---
 modes/canvas/text.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modes/canvas/text.js b/modes/canvas/text.js
index 5381f07..9606987 100644
--- a/modes/canvas/text.js
+++ b/modes/canvas/text.js
@@ -23,8 +23,11 @@ module.exports = Class(Base, {
 				(font.fontWeight || font['font-weight'] || '') + ' ' +
 				em + 'px ' +
 				(font.fontFamily || font['font-family'] || 'Arial');
-		} else {
+		} else if(this._font) {
 			font = this._font;
+		} else {
+			em = 12;
+			font = '12px Arial';
 		}
 
 		var lines = text && text.split(/\r?\n/);