polymer js 3.0 constructor calling twice issue in component

[nishanth....@gmail.com]

Hi, we are developing a web app using pwastater kit and polymer js 3.0,i am facing an issue once my component is invoked the constructor is calling two times because of this my login service is calling twice, i am placing my login component in my-app component. please find the below code snippet of my login component.

import { LitElement, html } from '@polymer/lit-element';

import { GetLoginJwt } from '../../framework/repository/jwt.repository.js';

import { BindMessageListener } from '../../framework/services/frame-message-listener.service.js';

import { AppConstants } from '../../framework/constants/app.constants.js';

import { LogInPopUp,IsUserLoggedIn,GetPopUpHtml } from '../../components/message-popup.component.js';

import {ExceptionHandlerService} from '../../framework/services/exception-handler.service'

import {ExceptionModel} from '../../framework/models/exception-data.model.js'

class Login extends LitElement {

render(props) {

return html`

`;

}

static get properties() {

return {

LoginURL: { type: String }

}

}

constructor() {

super();

if(document.getElementById("paperDialogBox")==null){

LogInPopUp();

IsUserLoggedIn().then(status=>{

if(!status){

this.LoginURL = "about:blank";

loginModelPopup.open();

this.GetLoginURL();

}

});

}

}

GetLoginURL() {

this.GenerateLoginUrl();

}

async GenerateLoginUrl() {

var encryptedJwt = '';

await GetLoginJwt().then(data => {

encryptedJwt = data;

});

let appConstants = new AppConstants();

this.LoginURL = appConstants.LoginUrl + encryptedJwt;

loginIframe.setAttribute('src',this.LoginURL);

BindMessageListener();

}

}

window.customElements.define('login-page', Login);

Thanks

Nisanth

[Ben Sisakht]

Hey, it would be great if you could add your my-app.js as well where you add your login-page. It looks like to me that there are two instances of login-page otherwise the checks you have implemented would prevent the second login page to be called. So my guess is somewhere/somehow you are instantiating two login-pages and it's not that constructor is being called twice in the same instance of login-page. Cheers