I was posting a comment onto Facebook today and I had to laugh when the URL image preview displayed this – a sprite – instead of another image or Logo.
The sprite in question is the “page furniture” with navigation elements, icons etc
It is served from a custom, cookie-free domain, with a far futures expiry date (Cache-Control:max-age=605381123)
Nice to see that Amazon are following the #webperf best practices, even if it confuses the heck out of Facebook on occasion!
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