using @tanstack/start-server-core root imports causes build issues with vite dev server #38

When using @auth0/auth0-tanstack-start-react in a TanStack Start application with Vite dev / SSR dependency pre-bundling (such as with @cloudflare/vite-plugin or Vite 6 environment dependency optimization), the dev server fails during dependency optimization with:

Error: Error during dependency optimization:

Build failed with 2 errors:

[RESOLVE_ERROR] Could not resolve '#tanstack-router-entry' in node_modules/@tanstack/start-server-core/dist/esm/createStartHandler.js
    28 │   import("#tanstack-router-entry"),
       ╵          ───────────────────────── Package import specifier is not defined

[RESOLVE_ERROR] Could not resolve '#tanstack-start-entry' in node_modules/@tanstack/start-server-core/dist/esm/createStartHandler.js
    29 │   import("#tanstack-start-entry"),
       ╵          ──────────────────────── Package import specifier is not defined

Root Cause
In src/server/cookie-handler.ts, src/server/handlers.ts, src/server/auth0-server.ts, and src/server/redirect-uri.ts, request and cookie utilities are imported from

@tanstack/start-server-core:
import { getCookie, getCookies, setCookie, deleteCookie } from '@tanstack/start-server-core';
import { getRequest, getResponseHeaders } from '@tanstack/start-server-core';

The root export . of @tanstack/start-server-core (dist/esm/index.js) re-exports createStartHandler.js, which imports #tanstack-router-entry and #tanstack-start-entry. These # specifiers are virtual Node subpath imports intended only for the TanStack Start runtime server entrypoint and cannot be resolved when dependency optimizers pre-bundle @tanstack/start-server-core.

Proposed Fix
Import the request and cookie utilities directly from @tanstack/start-server-core/request-response, which is the official subpath export declared in @tanstack/start-server-core's package.json:

"./request-response": {
  "import": {
    "types": "./dist/esm/request-response.d.ts",
    "default": "./dist/esm/request-response.js"
  }
}

This subpath contains all required helpers (getCookie, setCookie, deleteCookie, getCookies, getRequest, getResponseHeaders) without pulling in createStartHandler or unresolvable virtual entry aliases.

Files to Update

• src/server/cookie-handler.ts
• src/server/handlers.ts
• src/server/auth0-server.ts
• src/server/redirect-uri.ts
• and their corresponding test files (auth0-server.test.ts, handlers.test.ts, redirect-uri.test.ts)

reproduction

Environment

Please provide the following:

• Version of this library used: 1.0.0-beta.1
• Version of the platform or framework used, if applicable: @tanstack/react-start v1.168.27