adding cors in angular

"architect": {
    "serve": {
            "builder": "@angular-devkit/build-angular:dev-server",
            "options": {
                "browserTarget": "project-name:build",
                "proxyConfig": "src/proxy.conf.json"
            },
          }
}{
    "/api/*": {
        "target": "http://localhost:3000",
        "secure": false,
        "logLevel": "debug"
    }
}