Place the following in the head of your index.html and serve the "favicons" directory from the root of your server:

<link rel="apple-touch-icon" sizes="180x180" href="favicons/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="favicons/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="favicons/favicon-16x16.png">
<link rel="manifest" href="favicons/manifest.json">
<link rel="mask-icon" href="favicons/safari-pinned-tab.svg" color="#07C1E4">
<link rel="shortcut icon" href="favicons/favicon.ico">
<meta name="msapplication-config" content="favicons/browserconfig.xml">