flga-8.x-1.x-dev/js/face_login_gauth.js

(function ($) {
  'use strict';
  Drupal.behaviors.face_login_gauth = {
    attach: function (context, settings) {
      Webcam.set({
        width: 320,
        height: 240,
        image_format: 'jpeg',
        jpeg_quality: 90
      });
      Webcam.attach('#webcam');
      $('#captur_image').click(function (e) {
        e.preventDefault();
        Webcam.snap(function (data_uri) {
          $('#webcam_image').html("<img src='" + data_uri + "'/>");
          var base64result = data_uri.split(',')[1];
          $('input[name=target]').val(base64result);
        });
      });
    }
  };
})(jQuery);