Function handler

src/background/sync/base.js:706–716

(info)

   * @returns {chrome.webRequest.BlockingResponse}
   */
  const handler = (info) => {
    if (getService().checkAuth?.(info.url)) {
      // When onBeforeRequest occurs for initial requests intercepted by service worker,
      // info.tabId will be -1 on Chromium based browsers, use tabId instead.
      // tested on Chrome / Edge / Brave
      browser.tabs.remove(tabId);
      // If we unregister without setTimeout, API will ignore { cancel: true }
      setTimeout(unregister, 0);
      return { cancel: true };
    }
  };
  unregister = () => {
    browser.webRequest.onBeforeRequest.removeListener(handler);
  };