AC-245: Update Core Code

Author: krissyhiserote

lib/web/mage/adminhtml/wysiwyg/tiny_mce/tinymce5Adapter.js

@@ -196,7 +196,7 @@ define([
                 selector: '#' + this.getId(),
                 theme: 'silver',
                 skin: 'oxide',
-                toolbar_mode: 'wrap',
+                'toolbar_mode': 'wrap',
                 'entity_encoding': 'raw',
                 'convert_urls': false,
                 'content_css': this.config.tinymce['content_css'],
@@ -273,8 +273,8 @@ define([
                 settings.skin = this.config.skin;
             }
 
-            if (this.config.toolbar_mode) {
-                settings.toolbar_mode = this.config.toolbar_mode;
+            if (this.config['toolbar_mode']) {
+                settings['toolbar_mode'] = this.config['toolbar_mode'];
             }
 
             if (this.config.baseStaticUrl && this.config.baseStaticDefaultUrl) {