Hide Email Address From Title Bar

Remove email address from title bar on Gmail, Outlook.com, Office365, and Yahoo Mail
Wrap lines
// ==UserScript==
// @name        Hide Email Address From Title Bar
// @author      Jefferson "jscher2000" Scher
// @namespace   JeffersonScher
// @version     0.5
// @copyright   Copyright 2018 Jefferson Scher
// @license     BSD-3-Clause
// @description Remove email address from title bar on Gmail, Outlook.com, Office365, and Yahoo Mail
// @include     https://mail.google.com/*
// @include     https://outlook.live.com/*
// @include     https://outlook.office.com/*
// @include     https://outlook.office365.com/*
// @include     https://mail.yahoo.com/*
// @grant       none
// ==/UserScript==
function cleanTitle(){
//console.log('Called cleanTitle');
if (document.title.indexOf('@') > -1) {
var titleparts = document.title.split(' '), titlenew = '';
for (var i=0; i<titleparts.length; i++){
if (titleparts[i].indexOf('@') < 0){
titlenew += titleparts[i] + ' ';
} else {
if (location.hostname.indexOf('outlook.live') > -1) titlenew += 'Outlook ';
if (location.hostname.indexOf('outlook.office') > -1) titlenew += 'Office365 ';
}
}
titlenew = titlenew.replace('- - ', '- ').trim();
document.title = titlenew;
}
}
function setMutationWatch(){
MutOb = (window.MutationObserver) ? window.MutationObserver : window.WebKitMutationObserver;
if (MutOb){
chgMon = new MutOb(function(mutationSet){
mutationSet.forEach(function(mutation){
for (var i=0; i<mutation.addedNodes.length; i++){
if (mutation.addedNodes[i].nodeType == 1){ // Ignore some common nodes
if ('LINK|META|SCRIPT|STYLE'.indexOf(mutation.addedNodes[i].nodeName) < -1) cleanTitle();
} else { // There are rare but critical
cleanTitle();
}
}
});
});
// attach chgMon to <head>
opts = {childList: true, subtree: true, attributes: false, characterData: false};
chgMon.observe(document.getElementsByTagName('head')[0], opts);
}
}
cleanTitle();
setMutationWatch();