ERROR [h3] [unhandled] Expected input to be a string

[Moxxxem]

Environment

---

• Operating System: Linux
• Node Version: v18.18.2
• Nuxt Version: 2.17.2-28284499.5674f49
• CLI Version: 3.10.0
• Nitro Version: 2.8.0
• Package Manager: npm@9.8.1
• Builder: webpack
• User Config: bridge, env, server, buildModules, svgSprite, modules, plugins, router, axios, proxy, pwa, head, css, styleResources, loading, hooks, build, serverHandlers, devServerHandlers, devServer, typescript, nitro
• Runtime Modules: @nuxtjs/axios@5.13.6, @nuxtjs/style-resources@1.2.1, cookie-universal-nuxt@2.2.2, nuxt-validate@1.0.1
• Build Modules: (), @nuxtjs/pwa@3.3.5, @nuxtjs/svg-sprite@0.5.2, @nuxt/bridge@3.0.0-rc.3-28343365.3c40b3f

---

Reproduction

After installing nuxt bridge and turn on bridge: true in nuxt.config.js, change 'nuxt' to 'nuxi' in package.json, reinstall dependencies run 'npm run dev'.

Describe the bug

After running app, next compiling client and server, after compiling i'm open localhost and have
{
"statusCode": 500,
"stack": []
}
on the screen and
ERROR [h3] [unhandled] Expected input to be a string
at the console

Additional context

Before compiling nuxt throw ERROR [worker reload] Cannot read properties of null (reading 'address') at console, but after compiling nitro builded correctly

Logs

ERROR  [worker reload] Cannot read properties of null (reading 'address')                                                                                 1:23:38 PM

  at _reload (node_modules/nitropack/dist/shared/nitro.37241ef0.mjs:282:38)
  at runNextTicks (node:internal/process/task_queues:60:5)
  at process.processTimers (node:internal/timers:509:9)
  at async _applyPromised (node_modules/perfect-debounce/dist/index.mjs:54:10)

ℹ Watching ~/assets/icons/ for new icons                                                                                                  @nuxtjs/svg-sprite 13:23:46

 ERROR  [worker reload] Cannot read properties of null (reading 'address')                                                                                 1:23:46 PM

  at _reload (node_modules/nitropack/dist/shared/nitro.37241ef0.mjs:282:38)
  at async _applyPromised (node_modules/perfect-debounce/dist/index.mjs:54:10)

✔ Nitro built in 269 ms                                                                                                                             nitro 1:23:46 PM
ℹ Waiting for file changes                                                                                                                                1:23:46 PM

 ERROR  [h3] [unhandled] Expected input to be a string                                                                                                     1:23:52 PM

  at picomatch.test (node_modules/picomatch/lib/picomatch.js:119:11)
  at matcher (node_modules/picomatch/lib/picomatch.js:67:50)
  at micromatch (node_modules/micromatch/index.js:49:21)
  at matchSingleGlobPath (node_modules/http-proxy-middleware/dist/context-matcher.js:46:21)
  at Object.match (node_modules/http-proxy-middleware/dist/context-matcher.js:15:16)
  at HttpProxyMiddleware.shouldProxy (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:86:35)
  at HttpProxyMiddleware.<anonymous> (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:28:22)
  at Generator.next (<anonymous>)
  at node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:8:71
  at new Promise (<anonymous>)
  at __awaiter (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:4:12)
  at HttpProxyMiddleware.middleware [as handler] (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:26:47)
  at Object.handler (node_modules/h3/dist/index.mjs:1675:31)
  at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
  at async NuxtDevServer.toNodeHandle [as _handler] (node_modules/nuxi/dist/shared/nuxi.a4b9172a.mjs:648:7)


 ERROR  [h3] [unhandled] Expected input to be a string                                                                                                     1:23:52 PM

  at picomatch.test (node_modules/picomatch/lib/picomatch.js:119:11)
  at matcher (node_modules/picomatch/lib/picomatch.js:67:50)
  at micromatch (node_modules/micromatch/index.js:49:21)
  at matchSingleGlobPath (node_modules/http-proxy-middleware/dist/context-matcher.js:46:21)
  at Object.match (node_modules/http-proxy-middleware/dist/context-matcher.js:15:16)
  at HttpProxyMiddleware.shouldProxy (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:86:35)
  at HttpProxyMiddleware.<anonymous> (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:28:22)
  at Generator.next (<anonymous>)
  at node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:8:71
  at new Promise (<anonymous>)
  at __awaiter (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:4:12)
  at HttpProxyMiddleware.middleware [as handler] (node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:26:47)
  at Object.handler (node_modules/h3/dist/index.mjs:1675:31)
  at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
  at async NuxtDevServer.toNodeHandle [as _handler] (node_modules/nuxi/dist/shared/nuxi.a4b9172a.mjs:648:7)

[wattanx]

This will be resolved in the next patch release of nitro.
ref: nuxt/nuxt#24423

[Moxxxem]

This will be resolved in the next patch release of nitro. ref: nuxt/nuxt#24423

Ty for answer, but i have trouble with "Expected input to be a string" error after application compiling (below nitro errors in logs)

[wattanx]

The error 'Expected input to be a string' seems to be caused by a module you are using, not by nuxt/bridge.
Can you provide an environment where this can be reproduced? (I couldn't reproduce it with the steps you've written.)
https://stackblitz.com/github/nuxt/starter/tree/v2-bridge

[Moxxxem]

Reproduce it with my config & package.json, ty for help:
https://stackblitz.com/edit/github-ewdyxk

[Moxxxem]

Solve this problem. Remove @nuxtjs/axios from modules and remove axios and proxy from config.

Removed:

  axios: {
    credentials: true,
    proxy: true
  },
  proxy: {
    '/api/**': {
      target: process.env.API_URL,
      secure: false,
      changeOrigin: true,
      pathRewrite: { '^/api': '' },
      headers: {
        Connection: 'keep-alive'
      }
    }
  },

Added:

nitro: {
    sourceMap: false,
    devProxy: {
      '/api/': {
        target: process.env.API_URL,
        secure: false,
        changeOrigin: true,
        pathRewrite: { '^/api': '' },
        headers: {
          Connection: 'keep-alive'
        }
      }
    }
  }