browser-support: warn about the performance hit of using the polyfill~
@@ -44,6 +44,10 @@ also like to be aware of it!
};
```
+ **Warning:** doing this implies the polyfill will always be used,
+ even if native APIs are available. This has a very significant
+ performance impact (the polyfill was measured to be 100x slower in Chromium)!
+
2. If you're not using a bundler you can also include support manually by
adding a `<script>` tag which defines the `TextEncoder` and `TextDecoder`
globals. [This StackOverflow question][soq] has some example usage and MDN
