guardian / guardian/dotcom-rendering
Update the Fastly polyfill feature list
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- TypeScript
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Description
We currently load [polyfill features up to ES2019](https://github.com/guardian/dotcom-rendering/blob/main/dotcom-rendering/src/lib/polyfill.io.ts#L15-L30). Can we update this with APIs released in the last 6 years?
This might have protected us from the problem with `Array.at(...)` being used in `@guardian/react-crossword` (see guardian/csnx#2020)
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