scriptc/tests/fixtures/fetch/node_modules/fetchtap/index.js

// Patches globalThis.fetch at module init — the interception/polyfill
// pattern (undici interceptors, msw-style mocks, dotenv-ordered setup).
// USER-code fetch must read the LIVE global at call time, so calls made
// after this module evaluates go through the wrapper: it logs each URL and
// rewrites the fake origin to the harness server (argv[2]).
const FAKE = "https://gateway.invalid";
const base = process.argv[2];
const orig = globalThis.fetch;
globalThis.fetch = function fetch(input, init) {
  let url =
    typeof input === "string"
      ? input
      : input && typeof input.url === "string"
        ? input.url
        : String(input);
  console.log(`tap ${url}`);
  if (url.startsWith(FAKE)) url = base + url.slice(FAKE.length);
  return orig(url, init);
};
export function tappedFetchName() {
  return globalThis.fetch.name;
}