/*
Manifest

Inject Manifest
Auto-create manifest via pwabuilder.com
Copy&Paste JSON
Convert to data-uri via [this site](https://dopiaza.org/tools/datauri/index.php)
*/
const uri = 'INSERT_DATA_URL_HERE';
var elem = document.createElement('link');
elem.rel = 'manifest';
elem.href = uri;
document.head.appendChild(elem);