let isWinLoaded = false;
window.addEventListener('load',function () {

    if (!isWinLoaded){
        forceLoad();
        isWinLoaded = true;
    }
});


setTimeout(function () {
    if (!isWinLoaded){
        forceLoad();
        isWinLoaded = true;
    }
},5000);
const forceLoad = function () {
    const  preloader = document.querySelector('#panel-preloader');
    preloader.style.height = 0;
    setTimeout( () => {
      preloader.style.display = 'none';
    },500);
};