From 302a0ecfbb1cd5a33c81d1e5577ae4c2759b8c06 Mon Sep 17 00:00:00 2001
From: Greeny7 <greeny7greeny@gmail.com>
Date: Fri, 15 Apr 2016 12:43:03 +0300
Subject: [PATCH] protect headers from newline

---
 src/js/core.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/js/core.js b/src/js/core.js
index d7599fb69..c70f500c6 100644
--- a/src/js/core.js
+++ b/src/js/core.js
@@ -143,7 +143,9 @@
 
     function handleKeyup(event) {
         var node = MediumEditor.selection.getSelectionStart(this.options.ownerDocument),
-            tagName;
+            closestBlockTag,
+            tagName,
+            isHeader;
 
         if (!node) {
             return;
@@ -158,9 +160,12 @@
         // https://github.com/yabwe/medium-editor/issues/834
         // https://github.com/yabwe/medium-editor/pull/382
         // Don't call format block if this is a block element (ie h1, figCaption, etc.)
+        closestBlockTag = MediumEditor.util.getClosestBlockContainer(node).nodeName.toLowerCase();
+        isHeader = /h\d/i;
         if (MediumEditor.util.isKey(event, MediumEditor.util.keyCode.ENTER) &&
             !MediumEditor.util.isListItem(node) &&
-            !MediumEditor.util.isBlockContainer(node)) {
+            !MediumEditor.util.isBlockContainer(node) &&
+            !isHeader.test(closestBlockTag)) {
 
             tagName = node.nodeName.toLowerCase();
             // For anchor tags, unlink