<!DOCTYPE html>
<html>
<head>
<script src="//cdn.tinymce.com/4/tinymce.min.js"></script>
<script>
tinymce.init({
selector: 'textarea',
plugins: 'trunk-images',
toolbar: 'trunk-images'
});
</script>
</head>
<body>
<textarea>Testing trunk-images.</textarea>
</body>
</html>