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The problem isn't that you need a majority; in many such situations you need a supermajority. It's usually not okay if your website can't be safely used by 49%
by dwheeler 5y ago
The problem isn't that you need a majority; in many such situations you need a supermajority. It's usually not okay if your website can't be safely used by 49% of your users. In particular, Apple is notoriously slow at improving its JavaScript support in iOS, and they don't allow competing JavaScript implementations to run on iOS, so on iOS you're stuck.
In this case, as long as there is an easily-available OSS polyfill, it'll be okay. Ideally sites will only load the polyfill when they need to (primarily only if they're on iOS).