So I'm trying to add a custom favicon for this domain using the bare minimum tag of
<link rel="icon" type="image/png" sizes="192x192" href="https://cdns3.flysumo.com/media/28983/conversions/642ae694c2fe4_favicon-primary.png">
This works on my interior pages (https://client.pugpie.com/dogs) but does not work on the root domain of (https://client.pugpie.com/)
I'm testing this just by simply looking at my tab on safari. This works fine in chrome btw.
Looks like this has to do with caching on the browser. Testing this using new machines were not affected. Looks like just one png favicon is required.