window.open method so we can detect oauth related popups.
const origOpen = window.wrappedJSObject.open;
Object.defineProperty(window.wrappedJSObject, "open", {
  value: exportFunction((url, ...args) => {
    // Filter oauth popups.
    if (!url.startsWith(OAUTH_PATH_PREFIX)) {
      return origOpen(url, ...args);
    }
    // Request storage access for Kinja.
    document.requestStorageAccessForOrigin(STORAGE_ACCESS_ORIGIN).then(() => {
      origOpen(url, ...args);
    });
    // We don't have the window object yet which window.open returns, since the
    // sign-in flow is dependent on the async storage access request. This isn't
    // a problem as long as the website does not consume it.
    return null;
  }, window),
});
PK