From aa80c8cbdd0bc4b68a35a3c0b01857c7669c3dbd Mon Sep 17 00:00:00 2001
From: Robin Ward <robin.ward@gmail.com>
Date: Mon, 7 Nov 2016 11:06:32 -0500
Subject: [PATCH] FIX: Support optional logos when previewing the wizard

---
 app/assets/javascripts/wizard/lib/preview.js.es6 | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/app/assets/javascripts/wizard/lib/preview.js.es6 b/app/assets/javascripts/wizard/lib/preview.js.es6
index a5e8371eb29..17cfe560ff5 100644
--- a/app/assets/javascripts/wizard/lib/preview.js.es6
+++ b/app/assets/javascripts/wizard/lib/preview.js.es6
@@ -126,8 +126,11 @@ export function createPreviewComponent(width, height, obj) {
       // Logo
       const headerMargin = headerHeight * 0.2;
       const logoHeight = headerHeight - (headerMargin * 2);
-      const logoWidth = (logoHeight / this.logo.height) * this.logo.width;
-      this.scaleImage(this.logo, headerMargin, headerMargin, logoWidth, logoHeight);
+
+      if (this.logo) {
+        const logoWidth = (logoHeight / this.logo.height) * this.logo.width;
+        this.scaleImage(this.logo, headerMargin, headerMargin, logoWidth, logoHeight);
+      }
 
       // Top right menu
       this.scaleImage(this.avatar, width - avatarSize - headerMargin, headerMargin, avatarSize, avatarSize);