HTTPClient POST request not working on Angular 6 / Angular Universal about universal-starter HOT 4 CLOSED

import { TransferHttpService } from '@gorniv/ngx-transfer-http';
export class _HttpClient {
    constructor(private http: TransferHttpService) { }

    get(url: string, params?: any): Observable<any> {
        return this.http
            .get(url, {
                params: this.parseParams(params)
            })
            .catch((res) => {
                return res;
            });
    }
}

import { _HttpClient } from '@core/services/http.client';
...
constructor(private http: TransferHttpService) {}
ngOnInit() {
   this.http.get(`http://xxxx.xx/searchHasAcceptTest`).subscribe((res: any) => { // not callback
      console.log(res)
    }, error => {
      console.error("Error", error);
    });
 }
...

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { TranslateModule } from '@ngx-translate/core';
import { _HttpClient } from '@core/services/http.client';
import { HomeRoutes } from './home.routing';
import { HomeComponent } from './home.component';

@NgModule({
  imports: [
    CommonModule,
    HomeRoutes,
    TranslateModule
  ],
  providers: [
    _HttpClient
  ],
  declarations: [HomeComponent]
})
export class HomeModule { }

{
  "name": "universal-demo",
  "version": "6.1.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "ssr": "npm run build:universal && npm run generate:prerender && npm run server",
    "ssr:debug": "ng build --aot=true --output-hashing=all --named-chunks=false --build-optimizer=true  && ng run universal-demo:server:dev && webpack && node server.js",
    "ssr:cw": "ng build --aot=true --output-hashing=all --named-chunks=false --build-optimizer=true --watch",
    "ssr:sw": "ng run universal-demo:server:dev --watch",
    "ssr:webpack": "webpack --watch",
    "ssr:server": "nodemon server.js",
    "build": "ng build",
    "build:server": "ng run universal-demo:server:production",
    "build:prod": "ng build --prod",
    "build:universal": "ng build --prod && ng run universal-demo:server:production && webpack --progress --colors",
    "server": "node server.js",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "build:prerender": "npm run build:universal && npm run generate:prerender",
    "generate:prerender": "node prerender.js"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "6.0.6",
    "@angular/common": "6.0.6",
    "@angular/compiler": "6.0.6",
    "@angular/core": "6.0.6",
    "@angular/forms": "6.0.6",
    "@angular/http": "6.0.6",
    "@angular/platform-browser": "6.0.6",
    "@angular/platform-browser-dynamic": "6.0.6",
    "@angular/pwa": "0.6.8",
    "@angular/router": "6.0.6",
    "@angular/service-worker": "6.0.6",
    "@gorniv/ngx-transfer-http": "2.0.1",
    "@ngrx/effects": "^6.0.1",
    "@ngrx/router-store": "^6.0.1",
    "@ngrx/store": "^6.0.1",
    "@ngrx/store-devtools": "^6.0.1",
    "@nguniversal/common": "6.0.0",
    "@nguniversal/express-engine": "6.0.0",
    "@nguniversal/module-map-ngfactory-loader": "6.0.0",
    "@ngx-meta/core": "6.0.0-rc.1",
    "@ngx-translate/core": "10.0.2",
    "@ngx-translate/http-loader": "3.0.1",
    "angular2-masonry": "^0.4.0",
    "cookie-parser": "1.4.3",
    "core-js": "2.5.7",
    "imagesloaded": "^4.1.4",
    "moment": "^2.22.2",
    "morgan": "^1.9.0",
    "ng-lazyload-image": "^4.0.0",
    "ng-zorro-antd": "0.6.6",
    "ngx-cookie-service": "1.0.10",
    "ngx-countdown": "^3.0.1",
    "ngx-infinite-scroll": "^6.0.1",
    "ngx-masonry": "^1.1.0",
    "ngx-pagination": "^3.1.1",
    "ngx-pipes": "^2.2.0",
    "ngx-qrcode2": "0.0.9",
    "node-fetch": "2.1.2",
    "rxjs": "6.2.1",
    "rxjs-compat": "^6.2.1",
    "rxjs-tslint": "0.1.4",
    "videogular2": "^6.2.1",
    "zone.js": "0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "0.6.8",
    "@angular-devkit/schematics": "^0.6.8",
    "@angular/cli": "6.0.8",
    "@angular/compiler-cli": "6.0.6",
    "@angular/language-service": "6.0.6",
    "@angular/platform-server": "6.0.6",
    "@types/jasmine": "2.8.8",
    "@types/jasminewd2": "2.0.3",
    "@types/node": "10.3.4",
    "codelyzer": "4.3.0",
    "jasmine-core": "3.1.0",
    "jasmine-spec-reporter": "4.2.1",
    "karma": "2.0.3",
    "karma-chrome-launcher": "2.2.0",
    "karma-cli": "1.0.1",
    "karma-coverage-istanbul-reporter": "2.0.1",
    "karma-jasmine": "1.1.2",
    "karma-jasmine-html-reporter": "1.1.0",
    "localstorage-polyfill": "^1.0.1",
    "nodemon": "1.17.5",
    "preboot": "^6.0.0-beta.4",
    "protractor": "5.3.2",
    "ssri": "6.0.0",
    "tslint": "5.10.0",
    "typescript": "2.7.2",
    "webpack-cli": "3.0.8"
  }
}