https://esvlokschoeneweide.de/wp-content/themes/mercury/js/leaflet-controls.js?ver=1.0

1window.addEventListener('load', function leaflet_controls_load() {
2  'use strict';
3
4  if (!window.WPLeafletMapPlugin) {
5    console.info('No leaflet plugin found, not adding any controls.')
6    return;
7  }
8
9  var maps = window.WPLeafletMapPlugin.maps;
10
11  for (var i = 0, len = maps.length; i < len; i++) {
12    var map = maps[i];
13    map.whenReady(function() {
14      this.addControl(new L.Control.Fullscreen({ position: 'topright' }));
15      this.addControl(new L.Control.Scale({ position: 'bottomleft', metric: true, imperial: false }));
16    });
17  }
18});