diff --git a/core/assets/vendor/ckeditor/plugins/sharedspace/plugin.js b/core/assets/vendor/ckeditor/plugins/sharedspace/plugin.js
new file mode 100644
index 0000000000..4fa24636e1
--- /dev/null
+++ b/core/assets/vendor/ckeditor/plugins/sharedspace/plugin.js
@@ -0,0 +1,7 @@
+/*
+ Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
+ For licensing, see LICENSE.md or http://ckeditor.com/license
+*/
+(function(){function f(a,b,c){var e,d;if(c="string"==typeof c?CKEDITOR.document.getById(c):new CKEDITOR.dom.element(c))if(e=a.fire("uiSpace",{space:b,html:""}).html)a.on("uiSpace",function(a){a.data.space==b&&a.cancel()},null,null,1),d=c.append(CKEDITOR.dom.element.createFromHtml(g.output({id:a.id,name:a.name,langDir:a.lang.dir,langCode:a.langCode,space:b,spaceId:a.ui.spaceId(b),content:e}))),c.getCustomData("cke_hasshared")?d.hide():c.setCustomData("cke_hasshared",1),d.unselectable(),d.on("mousedown",
+function(a){a=a.data;a.getTarget().hasAscendant("a",1)||a.preventDefault()}),a.focusManager.add(d,1),a.on("focus",function(){for(var a=0,b,e=c.getChildren();b=e.getItem(a);a++)b.type==CKEDITOR.NODE_ELEMENT&&!b.equals(d)&&b.hasClass("cke_shared")&&b.hide();d.show()}),a.on("destroy",function(){d.remove()})}var g=CKEDITOR.addTemplate("sharedcontainer",'\x3cdiv id\x3d"cke_{name}" class\x3d"cke {id} cke_reset_all cke_chrome cke_editor_{name} cke_shared cke_detached cke_{langDir} '+CKEDITOR.env.cssClass+
+'" dir\x3d"{langDir}" title\x3d"'+(CKEDITOR.env.gecko?" ":"")+'" lang\x3d"{langCode}" role\x3d"presentation"\x3e\x3cdiv class\x3d"cke_inner"\x3e\x3cdiv id\x3d"{spaceId}" class\x3d"cke_{space}" role\x3d"presentation"\x3e{content}\x3c/div\x3e\x3c/div\x3e\x3c/div\x3e');CKEDITOR.plugins.add("sharedspace",{init:function(a){a.on("loaded",function(){var b=a.config.sharedSpaces;if(b)for(var c in b)f(a,c,b[c])},null,null,9)}})})();
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