JS code for iFrame LWC

iFrame.js

import { api, LightningElement } from 'lwc';

export default class IFrame extends LightningElement {
  @api height = '500px';
  @api sandbox = '';
  @api url = '';
  @api width = '100%';
  
  renderedCallback() {
    if (this.sandbox) {
      const element = this.template.querySelector('iframe');
      element.sandbox = this.sandbox;
    }
  }
}