How to add background in Drupal 8 views-view-fields.html.twig' files.

I try like this but it's don't work. Using views I just output image paht.

 <div class="cover-img" style="background:url('{{ field_image_1 }}');">
    </div>

Thank you

How to add background in Drupal 8 views-view-fields.html.twig' files.

I try like this but it's don't work. Using views I just output image paht.

 <div class="cover-img" style="background:url('{{ field_image }}');">
    </div>

Thank you