HttpClient cannot ignore or bypass self signed certificate error


Hello everybody. I have tried to send a POST data to a server but i received an error , “net::ERR_CERT_INVALID”. The code as shown below is what I tried to bypass the error but it’s still fail. Please help advice.

import { HttpClient, HttpParams } from '@angular/common/http';

createData(data): Promise<any> {
    let post_message = data;
    let header_node = {
      Accept: 'application/json',
      rejectUnauthorized: 'false',
    // this.oauth_header.Authorization = 'Bearer ' + access_token;
    const url_params = new HttpParams()
      .set('rejectUnauthorized', 'false')
      .set('requestCert', 'false')
      .set('insecure', 'true')

    return'https://ip/createdata', post_message, {
      headers: header_node,

You could add the self signed certificate to your machine’s trust store. Try the url in the browser first. When you get no more cert error in the browser it should then also work in angular. Google for add self signed certificate to trusted <your operating system>.