fix(bundling): add faux-ESM files so "import" in Node works with both named and default exports #18916
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This PR address an issue with packaging dual formats with Rollup, where using
import
in Node is causes issues.type: module
is not specified (intentional), ESM files must have.mjs
file extensionexports.default
but Node usesexports
object as the default export when using CJS in ESMThe updated e2e test has an example in Rollup to ensure dual format works correctly when using ESM in Node.
Current Behavior
Expected Behavior
Related Issue(s)
Fixes #18912