j = strlen(zLine) - 1;
      while( j>4 && fossil_strcmp(&zLine[j-4],"/xfer")==0 ){
         j -= 4;
         zLine[j] = 0;
      }
      if( (mHttpFlags & HTTP_QUIET)==0 ){
        fossil_print("redirect with status %d to %s\n", rc, &zLine[i]);
      }
      if( g.url.isFile || g.url.isSsh ){
        fossil_warning("cannot redirect from %s to %s", g.url.canonical,
                       &zLine[i]);
        goto write_err;
      }
      wasHttps = g.url.isHttps;
      url_parse(&zLine[i], 0);
      if( wasHttps && !g.url.isHttps ){
        fossil_warning("cannot redirect from HTTPS to HTTP");
        goto write_err;
       }
      }
      if( g.url.isSsh || g.url.isFile ){
        fossil_warning("cannot redirect to %s", &zLine[i]);
        goto write_err;
      }
      transport_close(&g.url);
      transport_global_shutdown(&g.url);
      fSeenHttpAuth = 0;
      if( g.zHttpAuth ) free(g.zHttpAuth);
      g.zHttpAuth = get_httpauth();
      if( rc==301 || rc==308 ) url_remember();
      return http_exchange(pSend, pReply, mHttpFlags,