proxy-config does only rewrite request when not available locally

[toaditoad]

Bug Report or Feature Request (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request

Versions.

ng --version
    _                      _                 ____ _     ___
   / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
  / â–³ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
 / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
/_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
               |___/
@angular/cli: 1.0.4
node: 6.10.3
os: win32 x64
@angular/common: 2.4.10
@angular/compiler: 2.4.10
@angular/compiler-cli: 2.4.10
@angular/core: 2.4.10
@angular/forms: 2.4.10
@angular/http: 2.4.10
@angular/platform-browser: 2.4.10
@angular/platform-browser-dynamic: 2.4.10
@angular/router: 3.4.10
@angular/upgrade: 2.4.10
@angular/cli: 1.0.4

As also shown in many other issues and SO posts, I try to create a proxy and redirect requests from my frontend (localhost:4200) to my backend (localhost:5001).

proxy.conf.json

{
  "/assets/*": {
    "target": "http://localhost:5001/",
    "secure": false,
    "logLevel": "debug",
    "pathRewrite": {"^/assets": ""},
    "changeOrigin": false
  }
}

I successfully run my application with ng serve --proxy-config src\environments\proxy.conf.json. When I access e.g. http://localhost:4200/assets//api/v1/sites/1, it gets rewritten as expected to http://localhost:5001/api/v1/sites/1. However, when requesting http://localhost:4200/assets//api/v1/vehicles, it does not work. They only obvious difference is that the resource vehicles exists under http://localhost:4200 whereas sites/1 does not. When I delete vehicles, the request gets also rewritten.

Is this the expected behaviour: Only rewrite the request if the resource is not available under the original host?

[filipesilva]

We forward that file to the webpack-dev-server proxy functionality, which in turn fowards it to http-proxy-middleware. At first blush it seems to be intended, yes. You can read more about it in https://webpack.js.org/configuration/dev-server/#devserver-proxy.

[toaditoad]

Thanks for confirming that.

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