const sleep = ms => new Promise(r => setTimeout(r, ms));
const propsOf = el => { for (const k of Object.keys(el)) if (k.startsWith('__reactProps$')) return el[k]; return null; };
const fire = (el) => { let t = el; for (let i=0;i<8&&t;i++){const q=propsOf(t);
  if(q&&typeof q.onClick==='function'){q.onClick({target:t,currentTarget:t,stopPropagation(){},preventDefault(){},nativeEvent:{},button:0,detail:1});return true;} t=t.parentElement;} return false; };
let leaf=null;
for (const el of document.querySelectorAll('*'))
  if (el.children.length===0 && (el.textContent||'').trim()==='连接性错误 (834)') { leaf=el; break; }
if(!leaf) return {err:'node not found'};
if(!fire(leaf)) return {err:'no onClick'};
await sleep(2000);
let best=null;
for (const el of document.querySelectorAll('div,table,tbody')) {
  const x = el.innerText||'';
  if (/错误对象/.test(x) && /[0-9]连接性错误/.test(x) && (!best || x.length < best.length)) best = x;
}
return {detail: (best||'').split('input::-webkit')[0].slice(0, 6000)};