title: HttpClient cannot ignore or bypass self signed certificate error
body: <p>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. Thank you.</p>
  
  <pre><code>import { HttpClient, HttpParams } from '@angular/common/http';
  
  createData(data): Promise&lt;any&gt; {
      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 this.http.post('https://ip/createdata', post_message, {
        headers: header_node,
  
      }).toPromise();
  </code></pre>