Access to XMLHttpRequest at 'http://localhost:3000/framework/create' from origin 'http://localhost:4200' has...











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i have an error




Access to XMLHttpRequest at 'http://localhost:3000/framework/create' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.




how i fix it?



i'm use angular v7 and express.js for backend






import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Injectable({providedIn : 'root'})
export class CommonService {

uri = 'http://localhost:3000/framework';

constructor(private http: HttpClient) { }

addFramework(framework, bahasa) {
const obj = {
framework: framework,
bahasa: bahasa
};
console.log(obj);
this.http.post(`${this.uri}/create`, obj)
.subscribe(res => console.log('Done'));
}


}












share|improve this question


























    up vote
    0
    down vote

    favorite












    i have an error




    Access to XMLHttpRequest at 'http://localhost:3000/framework/create' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.




    how i fix it?



    i'm use angular v7 and express.js for backend






    import { Injectable } from '@angular/core';
    import { HttpClient } from '@angular/common/http';

    @Injectable({providedIn : 'root'})
    export class CommonService {

    uri = 'http://localhost:3000/framework';

    constructor(private http: HttpClient) { }

    addFramework(framework, bahasa) {
    const obj = {
    framework: framework,
    bahasa: bahasa
    };
    console.log(obj);
    this.http.post(`${this.uri}/create`, obj)
    .subscribe(res => console.log('Done'));
    }


    }












    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      i have an error




      Access to XMLHttpRequest at 'http://localhost:3000/framework/create' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.




      how i fix it?



      i'm use angular v7 and express.js for backend






      import { Injectable } from '@angular/core';
      import { HttpClient } from '@angular/common/http';

      @Injectable({providedIn : 'root'})
      export class CommonService {

      uri = 'http://localhost:3000/framework';

      constructor(private http: HttpClient) { }

      addFramework(framework, bahasa) {
      const obj = {
      framework: framework,
      bahasa: bahasa
      };
      console.log(obj);
      this.http.post(`${this.uri}/create`, obj)
      .subscribe(res => console.log('Done'));
      }


      }












      share|improve this question













      i have an error




      Access to XMLHttpRequest at 'http://localhost:3000/framework/create' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.




      how i fix it?



      i'm use angular v7 and express.js for backend






      import { Injectable } from '@angular/core';
      import { HttpClient } from '@angular/common/http';

      @Injectable({providedIn : 'root'})
      export class CommonService {

      uri = 'http://localhost:3000/framework';

      constructor(private http: HttpClient) { }

      addFramework(framework, bahasa) {
      const obj = {
      framework: framework,
      bahasa: bahasa
      };
      console.log(obj);
      this.http.post(`${this.uri}/create`, obj)
      .subscribe(res => console.log('Done'));
      }


      }








      import { Injectable } from '@angular/core';
      import { HttpClient } from '@angular/common/http';

      @Injectable({providedIn : 'root'})
      export class CommonService {

      uri = 'http://localhost:3000/framework';

      constructor(private http: HttpClient) { }

      addFramework(framework, bahasa) {
      const obj = {
      framework: framework,
      bahasa: bahasa
      };
      console.log(obj);
      this.http.post(`${this.uri}/create`, obj)
      .subscribe(res => console.log('Done'));
      }


      }





      import { Injectable } from '@angular/core';
      import { HttpClient } from '@angular/common/http';

      @Injectable({providedIn : 'root'})
      export class CommonService {

      uri = 'http://localhost:3000/framework';

      constructor(private http: HttpClient) { }

      addFramework(framework, bahasa) {
      const obj = {
      framework: framework,
      bahasa: bahasa
      };
      console.log(obj);
      this.http.post(`${this.uri}/create`, obj)
      .subscribe(res => console.log('Done'));
      }


      }






      angularjs express






      share|improve this question













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      share|improve this question










      asked Nov 21 at 1:55









      rizky alviandra

      66




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