karma-edgium-launcher

Launcher for Edge and Edge Canary.

Installation

The easiest way is to keep karma-edgium-launcher as a devDependency in your package.json, by running

$ npm i -D karma-edgium-launcher

Configuration

// karma.conf.js
module.exports = function(config) {
  config.set({
    browsers: ['Edge', 'Edge_without_security'], // You may use 'EdgeCanary' or any other supported browser

    // you can define custom flags
    customLaunchers: {
      Edge_without_security: {
        base: 'Edge',
        flags: ['--disable-web-security', '--disable-site-isolation-trials']
      }
    }
  })
}

The --user-data-dir is set to a temporary directory but can be overridden on a custom launcher as shown below. One reason to do this is to have a permanent Edge user data directory inside the project directory to be able to install plugins there (e.g. JetBrains IDE Support plugin).

customLaunchers: {
  Edge_with_debugging: {
    base: 'Edge',
    edgeDataDir: path.resolve(__dirname, '.edge')
  }
}

You can pass list of browsers as a CLI argument too:

$ karma start --browsers Edge,Edge_without_security

Usage

$ npm i -D puppeteer karma-edgium-launcher

// karma.conf.js
process.env.CHROME_BIN = require('puppeteer').executablePath()

module.exports = function(config) {
  config.set({
    browsers: ['EdgeHeadless']
  })
}

For more information on Karma see the homepage.