I have implemented a custom tinymce plugin and before epi server upgradation and it work fine. (In episever 7.5)
After the upgrade in edit mood when i load the editor it says
"Failed to load: /util/Editor/tinymce/plugins/accordion/editor_plugin.js?moduleArea=Util".
In other inbuilt plugins are working fine.Only manual implemented plugin arise this 404 error.
Then i found that in EPi Server 8 there is a zip file which include the tinymce resources.
So i tried to add my newly created plugin to the "EPiServer.Cms.Shell.UI.zip" file in Modules->_protected->CMS (Unziped and add the plugin folder and zip again and replace)
After adding to that zip file it works fine.
So i need to know the best apprach to add a tinymce plugin to the epi server.
Is the best solution , updating the "EPiServer.Cms.Shell.UI.zip" file ?
