Tampermonkey script to make login page on https://sdomembers.z-wavealliance.org/ password manager friendly

tampermonkey_sdomembers_zwavealliance_login.js

// ==UserScript==
// @name         Make Z-Wave Alliance Member Login accessible for 1Password
// @namespace    http://tampermonkey.net/
// @version      2025-11-13
// @description  ...because it does not work out of the box
// @author       AlCalzone
// @match        https://sdomembers.z-wavealliance.org/LoginPage*
// @run-at       document-end
// @icon         https://www.google.com/s2/favicons?sz=64&domain=z-wavealliance.org
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const form = document.querySelector('#Form');
    const aspUser = document.querySelector('input[type="text"][name$="txtUserName"]');
    const aspPass = document.querySelector('input[type="password"][name$="txtPassword"]');

    if (!form || !aspUser || !aspPass) return;

    // Better hints for 1Password
    aspUser.setAttribute('autocomplete', 'username');
    aspPass.setAttribute('autocomplete', 'current-password');

    // --- Create hidden “standard” fields (used by 1Password) ---
    let mirrorUser = form.querySelector('input[name="username"]');
    if (!mirrorUser) {
        mirrorUser = document.createElement('input');
        mirrorUser.type = 'text';
        mirrorUser.name = 'username';
        mirrorUser.autocomplete = 'username';
        mirrorUser.style.position = 'absolute';
        mirrorUser.style.left = '-9999px';
        mirrorUser.tabIndex = -1;
        form.appendChild(mirrorUser);
    }

    let mirrorPass = form.querySelector('input[name="password"]');
    if (!mirrorPass) {
        mirrorPass = document.createElement('input');
        mirrorPass.type = 'password';
        mirrorPass.name = 'password';
        mirrorPass.autocomplete = 'current-password';
        mirrorPass.style.position = 'absolute';
        mirrorPass.style.left = '-9999px';
        mirrorPass.tabIndex = -1;
        form.appendChild(mirrorPass);
    }

    // Mirror fake input fields into real ones
    mirrorUser.addEventListener('input', () => {aspUser.value = mirrorUser.value;});
    mirrorPass.addEventListener('input', () => {aspPass.value = mirrorPass.value;});
})();