From 66c091cfbbc7a8118b11c9c10dca1d8921b70e59 Mon Sep 17 00:00:00 2001
From: Tom Moor <tom.moor@gmail.com>
Date: Tue, 30 Jan 2018 08:24:49 -0800
Subject: [PATCH] Closes #538 Seems simple and obvious because it is, we should
 check that startBlock exists before using it

---
 .../Editor/components/Toolbar/components/LinkToolbar.js        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/components/Editor/components/Toolbar/components/LinkToolbar.js b/app/components/Editor/components/Toolbar/components/LinkToolbar.js
index efce54e3b..90e236ab2 100644
--- a/app/components/Editor/components/Toolbar/components/LinkToolbar.js
+++ b/app/components/Editor/components/Toolbar/components/LinkToolbar.js
@@ -138,7 +138,8 @@ class LinkToolbar extends Component {
       if (href) {
         change.setInline({ type: 'link', data: { href } });
       } else if (link) {
-        const selContainsLink = !!change.value.startBlock.getChild(link.key);
+        const startBlock = change.value.startBlock;
+        const selContainsLink = !!(startBlock && startBlock.getChild(link.key));
         if (selContainsLink) change.unwrapInlineByKey(link.key);
       }
       change.deselect();