No way to force Babel to transpile arrow functions?

Bug Report

• I would like to work on a fix! (Unless there’s already an existing solution)

Current behavior My organization works with a code base that does not support Internet Explorer, therefore we don’t supply an ie target in our browserlist. However, some of our 3d party dependencies rely on Babel transforms that are seemingly only performed when targeting ie >= 11, specifically the transform-arrow-functions transform.

We’re using @babel/preset-env, and I’ve tried various methods of forcing Babel to perform the transform-arrow-functions transform, to no avail.

• using include: ['@babel/plugin-transform-arrow-functions'] on the preset doesn’t seem to work
• using forceAllTransforms: true on the preset doesn’t seem to work

Only when we add an ie target back into our browserlist does Babel transform arrow functions. Is there a way to achieve this without specifying an ie target or otherwise altering our browserlist (which we use for other things)?

Expected behavior I would expect that using forceAllTransforms or using include with the specific plugin would instruct Babel to perform the relevant transform, even though Babel thinks it’s not needed given our browserlist.

Babel Configuration (babel.config.js, .babelrc, package.json#babel, cli command, .eslintrc)

• Filename: babel.config.js

...
 presets: [
    [
        '@babel/preset-env',
        {
            useBuiltIns: 'entry',
            corejs: 3,
            forceAllTransforms: true, // doesn't work
            include: ['@babel/plugin-transform-arrow-functions'] // doesn't work
        }
    ]
],
...

• Browserlist:

"browserslist": [
    "chrome >= 66",
    "firefox >= 60",
    "edge >= 41",
    "ios >= 10"
]

Environment

System:
    OS: macOS 10.15.5
  Binaries:
    Node: 12.13.0 - /usr/local/bin/node
    Yarn: 1.22.4 - /usr/local/bin/yarn
    npm: 6.14.7 - bin/docker-stubs/npm
  npmPackages:
    @babel/core: ^7.11.1 => 7.11.1 
    @babel/plugin-proposal-class-properties: ^7.10.4 => 7.10.4 
    @babel/plugin-proposal-optional-chaining: ^7.11.0 => 7.11.0 
    @babel/plugin-transform-arrow-functions: ^7.10.4 => 7.10.4 
    @babel/plugin-transform-runtime: ^7.11.0 => 7.11.0 
    @babel/preset-env: ^7.11.0 => 7.11.0 
    @babel/preset-react: ^7.10.4 => 7.10.4 
    @babel/runtime: ^7.11.2 => 7.11.2 
    babel-cli: ^6.26.0 => 6.26.0 
    babel-eslint: ^10.1.0 => 10.1.0 
    babel-jest: ^26.2.2 => 26.2.2 
    babel-loader: ^8.1.0 => 8.1.0 
    babel-plugin-lodash: ^3.3.4 => 3.3.4 
    babel-plugin-require-context-hook: ^1.0.0 => 1.0.0 
    babel-plugin-syntax-trailing-function-commas: ^6.22.0 => 6.22.0 
    eslint: ^7.6.0 => 7.6.0 
    eslint-plugin-babel: ^5.3.1 => 5.3.1 
    jest: ^26.2.2 => 26.2.2 
    webpack: ^4.44.1 => 4.44.1

Possible Solution

Additional context Add any other context about the problem here. Or a screenshot if applicable

[existentialism]

@colbymelvin sure!

[existentialism]

@colbymelvin going to close this for now, looking forward to your PR!