Often (in my experience) WebP is served as a bait-and-switch even if the link ends with .jpg. So I use Curl to fetch the file, and since Curl doesn't send "Acce

Often (in my experience) WebP is served as a bait-and-switch even if the link ends with .jpg. So I use Curl to fetch the file, and since Curl doesn't send "Accept: image/webp" unless you tell it to, the server just gives you what you ask for. I once edited Firefox config to make it pretend to not support WebP, and the only site that broke was YouTube.