const fs = require('fs');
const content = fs.readFileSync('D:/cumin/ghaymah_dns_net_sec_tests/ghaymah_bundle.js', 'utf8');

const idx = content.indexOf('qe=async je=>Le');
if (idx !== -1) {
  // search forward for return { ... qe
  const returnIdx = content.indexOf('createApp:', idx);
  if (returnIdx !== -1) {
    console.log('Return context:');
    console.log(content.substring(returnIdx - 50, returnIdx + 500));
  }
}