webdam-1.0.x-dev/js/webdam.upload.js

/**
 * @file
 */

(function ($, Drupal) {

    'use strict';

    /**
     * Registers behaviours related to Webdam upload widget.
     */
    Drupal.behaviors.webdamUpload = {
        attach: function (context) {
          const $submit =  $(once('webdam-asset-upload', '#edit-submit', context));
          $submit.click();
        }
    };

}(jQuery, Drupal));