1. This is genius and @LeaVerou is an international treasure. 2. IMO this cries out for a mini-standard, 脿 la: <link rel="icon" type="unicode" value="馃">
Now that all modern browsers support SVG favicons, here's how to turn any emoji into a favicon.svg: <svg xmlns="w3.org/2000/svg" viewBox="0 0 100 100"> <text y=".9em" font-size="90">馃挬</text> </svg> Useful for quick apps when you can't be bothered to design a favicon!
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I guess <link rel="icon" href="data:text/plain;charset=UTF-8,馃敟"> is too verbose?

Mar 23, 2020 路 12:32 AM UTC

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Replying to @davidbaron @torgo
Wonder if that results in reasonable sizing and centering? I'll have to try it out and compare to @LeaVerou's solution!
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We'd still need to implement support for it first (just like your suggestion).
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