RecaptchaVerifier is only supported in a browser HTTP/HTTPS environment

Hello. I am writing a program that takes a 6 digit code using firebase (about authentication).
In my Android environment, my code works so I can get a 6 digit code and log in, but in the ios environment I get an error.

RecaptchaVerifier is only supported in a browser HTTP/HTTPS environment.

How can i solve it?

It’s part of my code.

export class CertifiedPage {

  recaptchaVerifier;
  confirmationResult: firebase.auth.ConfirmationResult;
  otpSent = false;
  phoneNumber: number;
  otp: any;
  pNumber: any;
  name = '';
  mycountry = '';

  firemain = firebase.database().ref();
  constructor(public navCtrl: NavController, public alertCtrl: AlertController, public af: AngularFireAuth, public zone: NgZone) {

  }

  ionViewDidLoad() {
    this.recaptchaVerifier = new firebase.auth.RecaptchaVerifier('recaptcha-container', {
      'size': 'invisiable'
    });
  }

  sendOTP() {
    console.log('sendotp');
    this.pNumber = String(this.phoneNumber);
    this.pNumber = this.mycountry + this.pNumber;
    var iosNumber = String(this.phoneNumber);
    iosNumber = this.mycountry + iosNumber.replace(/(^0+)/, "");
    console.log(iosNumber);
    console.log(this.phoneNumber)
    console.log(this.mycountry)
    console.log(this.pNumber);
    this.af.auth.signInWithPhoneNumber(iosNumber, this.recaptchaVerifier).then((result) => {
      this.otpSent = true;
      this.confirmationResult = result;
      this.create_alert('phone', 'ok')
    }).catch(err => {
      alert(err);
      console.log(err);
    })
  }

  verifyOTP() {
    console.log('verifyotp')
    this.otp = '' + this.otp
    this.confirmationResult.confirm(this.otp).then(() => {
      this.create_alert('phone', 'ok')
      localStorage.setItem('phone', String(this.phoneNumber));
      this.userdataupdate()
    }).catch(err => {
      alert(err);
    })
  }

The very first search result I see when feeding your error message into Google leads to this bug discussion, of which a cursory examination indicates you’re going to have to look for other strategies.