Commits on Sep 16, 2024

1. Rollup JS files with rollup-typescript-plugin …

   The rollup-typescript-plugin does not transpile JS files using the TS
   compiler by default. This means that external dependencies that provide
   JS bundles will not be transpiled to the target ES version specified in
   the TypeScript config used by the plugin.
   
   This resulted in one of our dependencies (https://github.com/jakearchibald/idb)
   being included in the CDN bundles without being transpiled to
   ES5 (the target ES version). Since this dependencies bundle uses
   ES2018 syntax (object spread operator `{ ...x }`), this upgraded our CDN
   bundles' minimum ES version requirement to ES2018 which isn't compatible with older browser versions.
   To see the ES2018 syntax in one of the CDN bundles, see
   https://www.gstatic.com/firebasejs/10.13.1/firebase-app.js and search for `...oldTraps`.

   

   dlarocque committed Sep 16, 2024
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