amazon web services – Why does my node.js app run in EC2 but not in docker?

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Just tested. Both are using the same node version (18.17.1).

In EC2, everything goes fine.

Inside the docker with latest Node image, the following error is provided:

/tmp/project/node_modules/@aws-sdk/client-s3/dist-cjs/index.js:294
    useFipsEndpoint: options.useFipsEndpoint ?? false,
                                              ^

SyntaxError: Invalid or unexpected token
    at Module._extensions..js (node:internal/modules/cjs/loader:1310:10)

Node.js v18.17.1
[nodemon] app crashed - waiting for file changes before starting...

I have asked AI and it says ?? should have been supported by Node.js 18 (and it has been supported since 14). I don’t want to uninstall @aws-sdk/client-s3 at this point.

In both places, the thing I did is as simple as git clone then npm i then npm run dev, and the dev script points to nodemon -r esm index.js.

This issue did not happen in EC2, but it happens in Docker with Node Image. Both are linux.

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