){ fetch('/api/version',{cache:'no-store'}).then(function(r){return r.json();}).then(function(d){ var cur=String(d.build||'0'); var saved=null; try{ saved=sessionStorage.getItem(KEY); }catch(e){} if(saved && saved!==cur){ try{ sessionStorage.setItem(KEY,cur); }catch(e){} location.reload(); }else{ try{ sessionStorage.setItem(KEY,cur); }catch(e){} } }).catch(function(){}); } if(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',check);}else{check();} window.addEventListener('pageshow',function(e){ if(e.persisted){ check(); } }); setInterval(check, 15000); })();