title: How can I dynamically add a WTForms TextField to a FieldList using jQuery?
body: <p>I want to add or remove new WTForm input fields with button, using Jquery, just like here
  <a href="http://www.sanwebe.com/2013/03/addremove-input-fields-dynamically-with-jquery/comment-page-1" rel="nofollow">http://www.sanwebe.com/2013/03/addremove-input-fields-dynamically-with-jquery/comment-page-1</a>
  but using my form-fields.</p>
  
  <p>my form:</p>
  
  <pre><code>class EditBook(Form):
  title = TextField('title', validators = [Required()])
  authors = FieldList(TextField())
  </code></pre>
  
  <p>problem is that I can't just append for example </p>
  
  <pre><code>$(InputsWrapper).append("{{form.authors(size=20)}}");
  </code></pre>
  
  <p>it just prints this text.</p>