proxyConfig is ignored

[cawoodm]

Command

serve

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

No response

Description

ng serve --proxy-config proxy.conf.json is having no effect. There is no error message but no proxying is done.

The file proxy.conf.json exists and is in the same directory as the angular.json. Setting serve.options.proxyConfig in angular.json similarly has no effect. Calls to /api are not proxied, they are redirected back to / as if no proxying was active. There is also no message in the console that ng serve is now proxying.

proxy.conf.json

{
  "/api": {
    "target": "http://localhost:7071/api",
    "secure": false
  }
}

Minimal Reproduction

Run ng serve --port 7073 --proxy-conf or ng serve --proxy-conf proxy.conf.json (the docs are ambiguous).
Call http://localhost:7073/api - expect it to be proxied to localhost:7071 but it just redirects back to /

Exception or Error

Your Environment

Angular CLI: 19.1.8
Node: 22.7.0
Package Manager: npm 10.8.2
OS: win32 x64

Angular: 19.1.7

Anything else relevant?

No response

[alan-agius4]

Hi @cawoodm, I am unable to replicate this problem. Can you setup a minimal repro please?

You can read here why this is needed. A good way to make a minimal repro is to create a new app via ng new repro-app and adding the minimum possible code to show the problem. Then you can push this repository to github and link it here.

This might be related to your directory structure so its really important to get an accurate repro to diagnose this.