Disable ctrl+h to return page in New Relic

disable-ctrl-h-in-new-relic.user.js

// ==UserScript==
// @name         Disable ctrl+h to return page
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Disable ctrl+h to return page
// @author       oieioi
// @match        https://one.newrelic.com/launcher/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    document.addEventListener('keydown', (event) => {
        if (event.key === 'h' && event.ctrlKey) event.stopPropagation()
    })
})();