HTTP Request not working for url with "dev" keyword but working for other urls

[Nikhil_Negi]

Hello,
I am trying to make a simple http request to my app(dev instance - dev.connect.payzli.com). its giving error. its giving Parse Error: Missing expected CR after header value.

but if i do the same for other env the http request is working fine as it should.

[Nikhil_Negi]

This is happening if i run the instance locally or on cloud.

[D4w1d]

Hey,

Could you paste your workflow JSON here, so we can exactly see the full node configuration and test it ourselves?

Thanks

[Nikhil_Negi]

Hello David,

Thanks for the reply.

here is the workflow json

While debugging this issue and running both n8n and my web app locally, i came accross a situtation which might help with this issue too.

If i was putting http://localhost:3000 in the url while trying to make the API call i was getting the following error.

AxiosError: connect ECONNREFUSED ::1:3000
    at Function.AxiosError.from (/Users/nikhilnegi/pay/nan/n8n/node_modules/.pnpm/axios@1.12.0/node_modules/axios/lib/core/AxiosError.js:96:14)
    at RedirectableRequest.handleRequestError (/Users/nikhilnegi/pay/nan/n8n/node_modules/.pnpm/axios@1.12.0/node_modules/axios/lib/adapters/http.js:638:25)
    at RedirectableRequest.emit (node:events:530:35)
    at ClientRequest.eventHandlers.<computed> (/Users/nikhilnegi/pay/nan/n8n/node_modules/.pnpm/follow-redirects@1.15.11_debug@4.4.1/node_modules/follow-redirects/index.js:49:24)
    at ClientRequest.emit (node:events:518:28)
    at emitErrorEvent (node:_http_client:104:11)
    at Socket.socketErrorListener (node:_http_client:518:5)
    at Socket.emit (node:events:518:28)
    at emitErrorNT (node:internal/streams/destroy:170:8)
    at emitErrorCloseNT (node:internal/streams/destroy:129:3)
    at Axios.request (/Users/nikhilnegi/pay/nan/n8n/node_modules/.pnpm/axios@1.12.0/node_modules/axios/lib/core/Axios.js:45:41)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at invokeAxios (/Users/nikhilnegi/pay/nan/n8n/packages/core/src/execution-engine/node-execution-context/utils/request-helper-functions.ts:283:10)
    at proxyRequestToAxios (/Users/nikhilnegi/pay/nan/n8n/packages/core/src/execution-engine/node-execution-context/utils/request-helper-functions.ts:659:20)
    at Object.request (/Users/nikhilnegi/pay/nan/n8n/packages/core/src/execution-engine/node-execution-context/utils/request-helper-functions.ts:1804:4) {
  port: 3000,
  address: '::1',
  syscall: 'connect',
  code: 'ECONNREFUSED',
  errno: -61,
  config: undefined,
  request: undefined,
  options: {
    url: 'http://localhost:3000',
    method: 'get',
    data: undefined,
    headers: Object [AxiosHeaders] {
      Accept: '*/*',
      'Content-Type': false,
      'User-Agent': 'axios/1.12.0',
      'Accept-Encoding': 'gzip, compress, deflate, br'
    }
  },
  [cause]: Error: connect ECONNREFUSED ::1:3000
      at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1636:16)
      at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
    errno: -61,
    code: 'ECONNREFUSED',
    syscall: 'connect',
    address: '::1',
    port: 3000
  }
}

on the other hand if i pout http://127.0.0.1:3000 in the url the API request was working fine.

[D4w1d]

I run the following test:

I cloned your workflow to my local setup (the only change I did was dropping https:// in favour of http:// - the rest remained identical).

I started local n8n at http://localhost:5678

I started a fake http server on port 3000:

// index.js
const http = require('http');

http
  .createServer((req, res) => {
    res.statusCode = 200;
    res.end('OK');
  })
  .listen(3000);

node index.js

Then checked http://localhost:3000 in Chrome - responded with 200 OK.

Finally, run the workflow, it worked as expected:

In your local setup, are you sure there is a server running at 3000 that is accessible?