Function maybeValidate

src/validator-integration.js:16–34

(win)

 * @param {!Window} win Destination window for the new element.
 */
export function maybeValidate(win) {
  const filename = win.location.href;
  if (filename.startsWith('about:')) {
    // Should only happen in tests.
    return;
  }
  let validator = false;
  const params = getHashParams(win);
  if (isModeDevelopment(win, params)) {
    validator = params['validate'] !== '0';
  }

  if (validator) {
    loadScript(win.document, `${urls.cdn}/v0/validator_wasm.js`).then(() => {
      /* global amp: false */
      amp.validator.validateUrlAndLog(filename, win.document);
    });
  }
}

/**
 * Loads script