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Is karma-phantomjs-launcher ESM-only? Can you require() it?

A Karma plugin. Launcher for PhantomJS.

Last verified Sep 9, 2026 against karma-phantomjs-launcher@1.0.4. Markdown · JSON

CommonJS CommonJS on paper — require() failed in our runtime test

karma-phantomjs-launcher declares a CommonJS entry only, but require("karma-phantomjs-launcher") failed on every Node.js version in our probe: ERR_INVALID_ARG_TYPE. import "karma-phantomjs-launcher" resolves to the same file, so it fails the same way. That usually means a missing peer dependency, a browser-only global, or a package that is not meant to be loaded directly; see the runtime table below.

What to do

  1. require("karma-phantomjs-launcher") failed in our probe on every Node.js version (ERR_INVALID_ARG_TYPE); check the package README for peer dependencies or setup before relying on it.
  2. From ES modules use the default import: import karmaPhantomjsLauncher from "karma-phantomjs-launcher"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: no types are available for karma-phantomjs-launcher; declare the module yourself if you need them.
  4. This package is deprecated: PhantomJS development have stopped, use puppeteer or similar
Latest
1.0.4 (Mar 10, 2017)
Module format
CommonJS
Last CommonJS version
1.0.4
TypeScript types
None
Node engines
not declared
Weekly downloads
177K
License
MIT

Deprecated: PhantomJS development have stopped, use puppeteer or similar

Does karma-phantomjs-launcher@1.0.4 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("karma-phantomjs-launcher") from a CommonJS file and import "karma-phantomjs-launcher" from an ES module.

Runtimerequire("karma-phantomjs-launcher")import "karma-phantomjs-launcher"
Node.js 18✗ failsERR_INVALID_ARG_TYPE✗ failsERR_INVALID_ARG_TYPE
Node.js 20✗ failsERR_INVALID_ARG_TYPE✗ failsERR_INVALID_ARG_TYPE
Node.js 22✗ failsERR_INVALID_ARG_TYPE✗ failsERR_INVALID_ARG_TYPE
Node.js 24✗ failsERR_INVALID_ARG_TYPE✗ failsERR_INVALID_ARG_TYPE
Node.js 26✗ failsERR_INVALID_ARG_TYPE✗ failsERR_INVALID_ARG_TYPE
Bun 1.4.0✗ failsERR_INVALID_ARG_TYPE✗ failsERR_INVALID_ARG_TYPE

A failing require() on a CommonJS package usually means the package needs a browser/DOM global, a peer dependency, or a native binary that is not available in a bare Node.js process.

How to import karma-phantomjs-launcher

ES modules (import)

import karmaPhantomjsLauncher from "karma-phantomjs-launcher";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

// require("karma-phantomjs-launcher") failed in our probe on every Node.js version we test (ERR_INVALID_ARG_TYPE); see the runtime table.
const karmaPhantomjsLauncher = require("karma-phantomjs-launcher");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (17 versions; the newest 17 shown).

VersionsFormatFirst published
0.0.1 – 1.0.4CommonJSMar 19, 2013

Frequently asked

Is karma-phantomjs-launcher ESM-only?

karma-phantomjs-launcher@1.0.4 declares a CommonJS entry, but require() fails at runtime. karma-phantomjs-launcher declares a CommonJS entry only, but require("karma-phantomjs-launcher") failed on every Node.js version in our probe: ERR_INVALID_ARG_TYPE. import "karma-phantomjs-launcher" resolves to the same file, so it fails the same way. That usually means a missing peer dependency, a browser-only global, or a package that is not meant to be loaded directly; see the runtime table below.

Can I require karma-phantomjs-launcher?

Not in practice. karma-phantomjs-launcher declares a CommonJS entry, but require("karma-phantomjs-launcher") failed on every Node.js version in our probe: ERR_INVALID_ARG_TYPE. Check the package README for peer dependencies or setup before relying on it.

Can I import karma-phantomjs-launcher with ES module syntax?

Yes. import karmaPhantomjsLauncher from "karma-phantomjs-launcher" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does karma-phantomjs-launcher work in Bun?

Importing karma-phantomjs-launcher failed in Bun 1.4.0 on Sep 9, 2026: TypeError: The "path" property must be of type string, got object

Does karma-phantomjs-launcher ship TypeScript types?

No. karma-phantomjs-launcher ships no type declarations and there is no @types package for it.

Links

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