Use Chrome. I'm on the latest mobile release and it works
No. "Use some other browser" isn't a solution. Especially when that other browser is Chrome.
Web standards exist for a reason -- if this only works in Chrome, it's nice to know what to avoid; however, your reply has led me to the answer I was looking for: having a look at MDN, Chrome and variants are the only browsers to support this, meaning it's not ready for web consumption.
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