From 56dba8900829996560cb7bfbe5fe5bbb004daaab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebasti=C3=A1n=20Katzer?= <katzer.sebastian@googlemail.com>
Date: Fri, 1 Mar 2019 19:58:15 +0100
Subject: [PATCH] Set content to empty string if null or undefined

---
 www/printer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/www/printer.js b/www/printer.js
index cc9db4c..a25a0a2 100755
--- a/www/printer.js
+++ b/www/printer.js
@@ -199,7 +199,7 @@ exports.print = function (content, options, callback, scope)
     var fn     = this._createCallbackFn(callback, scope),
         params = this._mergeWithDefaults(options || {});
 
-    exec(fn, null, 'Printer', 'print', [content, params]);
+    exec(fn, null, 'Printer', 'print', [content || '', params]);
 };
 
 /**