fix #142 - avoid deep copying options.editor

Author: linkesch

bower.json

@@ -22,7 +22,7 @@
   ],
   "dependencies": {
     "jquery": ">=1.9.0",
-    "medium-editor": "~2.0",
+    "medium-editor": "~2.3.0",
     "handlebars": "~2.0.0",
     "blueimp-file-upload": "~9.9.0",
     "jquery-sortable": "~0.9.12"

dist/js/medium-editor-insert-plugin.js

@@ -131,11 +131,21 @@ this["MediumInsert"]["Templates"]["src/js/templates/images-toolbar.hbs"] = Handl
      */
 
     function Core (el, options) {
+        var editor;
+
         this.el = el;
         this.$el = $(el);
         this.templates = window.MediumInsert.Templates;
 
+        if (options) {
+            // Fix #142
+            // Avoid deep copying editor object, because since v2.3.0 it contains circular references which causes jQuery.extend to break
+            // Instead copy editor object to this.options manually
+            editor = options.editor;
+            options.editor = null;
+        }
         this.options = $.extend(true, {}, defaults, options);
+        this.options.editor = editor;
 
         this._defaults = defaults;
         this._name = pluginName;