function reload() {
                                     var ifr = document.getElementsByTagName('iframe')[0];
                                     ifr.contentWindow.postMessage('reload', '*');
                                 }
                                 
                                 let receiveMessageIframe = function(event) {
                                 if (event.data == 'eyJ6b25laWQiOjEyLCJpc2NsZWFuIjowfQ==') {
                                        let iframeEl = document.getElementsByTagName('iframe')[0];
                                        let parentElement = iframeEl.parentElement;
                                        let defaultImage = parentElement.getElementsByClassName('default-image')[0];
                                        defaultImage.style.display = 'none';

                                        iframeEl.style.display = 'block';
                                    }

                                    if (event.data == 'reload') {
                                        var ifr = document.getElementsByTagName('iframe')[0];
                                        ifr.contentWindow.postMessage('reload', '*');
                                    }
                                }

                                 window.addEventListener('message', receiveMessageIframe, true);