title: How to set default image in dropify using jquery and ajax only
body: <p>I am using <a href="https://github.com/JeremyFagis/dropify" rel="nofollow noreferrer">https://github.com/JeremyFagis/dropify</a>  plugin for image upload and I am stuck at Edit page since I have to set default image but unable to do so.I have to do it using jquery and ajax. I have tried attr() and setting data-defalut-file() but no success. Also when i use data-defalut-file() i can see my image in inspect element but not on UI. Please help :)</p>
  
  <p>I tried : </p>
  
  <pre><code>  $("#thumbnails_4_5").attr(
      "data-default-file",
      s3BaseUrlVideo +
        "/" +
        bucketName +
        "/" +
        images_folder +
        "/" +
        define_grid +
        "/" +
        horizontal +
        "/" +
        item.grid.thumbnail_4_5
    );
  </code></pre>
  
  <p>and</p>
  
  <p>$('.dropify').dropify({
                         defaultFile: nameImage ,
                    });</p>