Uncaught ReferenceError: module is not defined

When I include kotlin-extensions in my HTML page, I get this error in all browsers:

Uncaught ReferenceError: module is not defined
    at kotlin-extensions.js:93
(anonymous) @ kotlin-extensions.js:93

This is line 93:

}(module.exports, require('kotlin'), require('core-js/library/fn/object/assign')));

The kotlin module is loaded, but core-js seems new to me. I could not find any documentation in the kotlin-extensions project which mentions core-js. As I include kotlin-extensions via gradle and I can not find anything core-js releated in the project, I assume the kotlin-extensions artifact is missing the dependency to core-js.

dependencies {
    compile(
        "org.jetbrains.kotlin:kotlin-stdlib-js:$kotlinVersion",
        "org.jetbrains:kotlin-extensions:$kotlinExtensionsVersion",
        "org.jetbrains:kotlin-react:$kotlinReactVersion",
        "org.jetbrains:kotlin-react-dom:$kotlinReactVersion"
    )
}

[Hypnosphi]

I’m going to drop the core-js import. Make sure that you provide your own Object.assign polyfill if you’re using objectAssign and have to support IE11

[Leonya]

It does exist, you have to npm install core-js. If you’re not using npm we don’t have a solution at the moment, I’m afraid.