fixup! Bug 41600: Add a tor circuit display panel.

    // will match up with the domain.

    // In contrast, documentURI corresponds to the shown page. E.g. it could

    // point to "about:certerror".

    const scheme = browser.currentURI?.scheme;

    let scheme = browser.currentURI?.scheme;

    if (scheme === "about" && browser.currentURI?.filePath === "reader") {

      const searchParams = new URLSearchParams(browser.currentURI.query);

      if (searchParams.has("url")) {

        try {

          const uri = Services.io.newURI(searchParams.get("url"));

          scheme = uri.scheme;

        } catch (err) {

          this._log.error(err);

        }

      }

    }

    if (

      this._currentBrowserData &&