unpkg.com/leaflet@${config.version}/dist/leaflet.css`
                    config.jsFile = `https://unpkg.com/leaflet@${config.version}/dist/leaflet-src.js`
                }

            }

            function createForm (action) {
                var form = document.createElement('form');
                form.setAttribute('method', 'post');
                form.setAttribute('action', action);
                form.createInput = function (name, value) {
                    var input = document.cr