From 0187407cff3aeda7c2974fd5f371b190e7e4ac3d Mon Sep 17 00:00:00 2001
From: Dave Glick <dave@daveaglick.com>
Date: Fri, 9 Dec 2016 15:47:26 -0500
Subject: [PATCH] Uses an empty text node instead of a string for svg group
 labels

---
 src/diagrams/flowchart/flowRenderer.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/diagrams/flowchart/flowRenderer.js b/src/diagrams/flowchart/flowRenderer.js
index 96cfa67de9..d96e4e9221 100644
--- a/src/diagrams/flowchart/flowRenderer.js
+++ b/src/diagrams/flowchart/flowRenderer.js
@@ -134,7 +134,8 @@ exports.addVertices = function (vert, g) {
                 break;
             case 'group':
                 _shape = 'rect';
-                verticeText = '';
+                // Need to create a text node if using svg labels, see #367
+                verticeText = conf.htmlLabels ? '' : document.createElementNS('http://www.w3.org/2000/svg', 'text');
                 break;
             default:
                 _shape = 'rect';