ESM: working on 10.15.2, fails on 10.15.3?

[patrikbeno]

• Version: 10.15.3
• Platform: Docker: node:10.15.3-alpine
• Subsystem: ES modules

Working on 10.15.2:

FROM node:10.15.2-alpine as esm_working
WORKDIR /bugcheck
RUN npm init -y
RUN npm i request request-promise
RUN echo "import request from 'request-promise'" > bugcheck.mjs
RUN node --experimental-modules bugcheck.mjs

Failing on 10.15.3:

FROM node:10.15.3-alpine as esm_failing
WORKDIR /bugcheck
RUN npm init -y
RUN npm i request request-promise
RUN echo "import request from 'request-promise'" > bugcheck.mjs
RUN node --experimental-modules bugcheck.mjs

Error: request-promise is trying to load request library but fails:

TypeError: Cannot read property 'onReady' of undefined
    at Module.load (internal/modules/cjs/loader.js:611:22)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (/bugcheck/node_modules/psl/index.js:14:19)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (/bugcheck/node_modules/tough-cookie/lib/pubsuffix-psl.js:32:11)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (/bugcheck/node_modules/tough-cookie/lib/cookie.js:35:17)

What has changed?
Was that intentional or is it a regression?

[patrikbeno]

In "legacy" require() mode, all is OK:

FROM node:10.15.3-alpine as require_working
WORKDIR /bugcheck
RUN npm init -y
RUN npm i request request-promise
RUN echo "const request = require('request-promise')" > bugcheck.mjs
RUN node bugcheck.mjs

[guybedford]

This was fixed in #25491 on Node.js 12.

We can backport that fix to the 10x branch too.

[ZYSzys]

This was backported into v10, try to upgrate your Node.js version to latest LTS(v10.16).