I would like to use the following base64 favicon and maybe some base64 images.
<link href="data:image/x-icon;base64,AAABAAEAEBAAAAAAAABoBQAAFgAAACgAAAAQAAAAIAAAAAEACAAAAAAAAAEAAAAAAAAAAAAAAAEAAAAAAA..AMAK3WxwAOWT0AK4RgAKHOvQA4hWUAP4lqAD2MagBQm3kATKSBAECcdP//AAD8/wAA+H8AAPA/AADwPwAA4B8AAMAPAACABwAAAgMAAI8BAADfgAAA/8AAAP/AAAD/4QAA//MAAP//AAA=" rel="icon" type="image/x-icon" />
Will these get cached by my browser?
No. Data URIs are not separately cached from their containing documents (e.g. CSS or HTML files) so data is downloaded every time the containing documents are redownloaded.