Ensures the tinymce baseURL is set before it's initialized so that when we minify it's assets it knows where to load more assets from.

src/Umbraco.Web.UI.Client/src/common/directives/components/grid/grid.rte.directive.js

@@ -144,7 +144,6 @@ angular.module("umbraco.directives")
                         //we need to add a timeout here, to force a redraw so TinyMCE can find
                         //the elements needed
                         $timeout(function () {
-                            tinymce.DOM.events.domLoaded = true;
                             tinymce.init(baseLineConfigObj);
                         }, 150, false);
                     }

src/Umbraco.Web.UI.Client/src/common/services/tinymce.service.js

@@ -242,6 +242,10 @@ function tinyMceService($rootScope, $q, imageHelper, $locale, $http, $timeout, s
          */
         getTinyMceEditorConfig: function (args) {
 
+            //global defaults, called before/during init
+            tinymce.DOM.events.domLoaded = true;
+            tinymce.baseURL = Umbraco.Sys.ServerVariables.umbracoSettings.umbracoPath + "/lib/tinymce/"; // trailing slash important
+
             var promises = [
                 this.configuration(),
                 getStyles(args.stylesheets)

src/Umbraco.Web.UI.Client/src/views/propertyeditors/rte/rte.controller.js

@@ -84,8 +84,7 @@ angular.module("umbraco")
 
                     //we need to add a timeout here, to force a redraw so TinyMCE can find
                     //the elements needed
-                    $timeout(function () {
-                        tinymce.DOM.events.domLoaded = true;
+                    $timeout(function () {                        
                         tinymce.init(baseLineConfigObj);
                     }, 200);
                 }