Function resolveRedirectTo

packages/angular/ssr/src/routes/ng-routes.ts:543–554

* Resolves the `redirectTo` property for a given route. * * This function processes the `redirectTo` property to ensure that it correctly * resolves relative to the current route path. If `redirectTo` is an absolute path, * it is returned as is. If it is a relative path, it is resolved based on

(routePath: string, redirectTo: string)

 * @returns The resolved redirect path as a string.
 */
function resolveRedirectTo(routePath: string, redirectTo: string): string {
  if (redirectTo[0] === '/') {
    // If the redirectTo path is absolute, return it as is.
    return redirectTo;
  }

  // Resolve relative redirectTo based on the current route path.
  const segments = routePath.replace(URL_PARAMETER_REGEXP, '*').split('/');
  segments.pop(); // Remove the last segment to make it relative.

  return joinUrlParts(...segments, redirectTo);
}

/**
 * Builds a server configuration route tree from the given server routes configuration.