message: fix(lambda-at-edge): minor fix to optional catch-all base route at root level
diff: @@ -476,6 +476,7 @@ class Builder {
  } else if (isOptionalCatchAllDynamicRoute) {
  expressRoute = expressifyOptionalCatchAllDynamicRoute(route);
  optionalBaseRoute = route.split("/[[")[0]; // The base path of optional catch-all without parameter
  + optionalBaseRoute = optionalBaseRoute === "" ? "/" : optionalBaseRoute;
  }
  if (isHtmlPage(pageFile)) {
  