Easy way to inject js in tinymce iframe?
WordPress injects its own external script files in the TinyMCE editor iframe, see for example the wp-includes/js/tinymce/plugins/wpembed/plugin.js file: (function ( tinymce ) { ‘use strict’; tinymce.PluginManager.add( ‘wpembed’, function ( editor, url ) { editor.on( ‘init’, function () { var scriptId = editor.dom.uniqueId(); var scriptElm = editor.dom.create( ‘script’, { id: scriptId, type: ‘text/javascript’, src: url + … Read more