if (!window.__stk) {
  window.__stk = [];
  const ow = console.warn.bind(console);
  console.warn = function(){ try{ const m=String(arguments[0]||'');
    if (m.indexOf('ProgressManager')>=0) window.__stk.push(new Error('trace').stack.slice(0,2000)); }catch(e){}
    return ow.apply(console, arguments); };
  // also catch swallowed errors: wrap Promise.prototype.catch? instead patch window.onerror already done
}
window.__stk.length=0;
const f = await eda.pcb_ManufactureData.getAutoRouteJsonFile('X');
await new Promise(r=>setTimeout(r,1500));
return {f: String(f), stk: window.__stk.slice(0,2)};