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1# karma-chrome-launcher
2
3[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/karma-runner/karma-chrome-launcher)
4 [![npm version](https://img.shields.io/npm/v/karma-chrome-launcher.svg?style=flat-square)](https://www.npmjs.com/package/karma-chrome-launcher) [![npm downloads](https://img.shields.io/npm/dm/karma-chrome-launcher.svg?style=flat-square)](https://www.npmjs.com/package/karma-chrome-launcher)
5
6[![Build Status](https://img.shields.io/travis/karma-runner/karma-chrome-launcher/master.svg?style=flat-square)](https://travis-ci.org/karma-runner/karma-chrome-launcher) [![Dependency Status](https://img.shields.io/david/karma-runner/karma-chrome-launcher.svg?style=flat-square)](https://david-dm.org/karma-runner/karma-chrome-launcher) [![devDependency Status](https://img.shields.io/david/dev/karma-runner/karma-chrome-launcher.svg?style=flat-square)](https://david-dm.org/karma-runner/karma-chrome-launcher#info=devDependencies)
7
8> Launcher for Google Chrome, Google Chrome Canary and Google Chromium.
9
10## Installation
11
12The easiest way is to keep `karma-chrome-launcher` as a devDependency in your `package.json`,
13by running
14
15```bash
16$ npm i -D karma-chrome-launcher
17```
18
19## Configuration
20
21```js
22// karma.conf.js
23module.exports = function(config) {
24 config.set({
25 browsers: ['Chrome', 'Chrome_without_security'], // You may use 'ChromeCanary', 'Chromium' or any other supported browser
26
27 // you can define custom flags
28 customLaunchers: {
29 Chrome_without_security: {
30 base: 'Chrome',
31 flags: ['--disable-web-security', '--disable-site-isolation-trials']
32 }
33 }
34 })
35}
36```
37
38The `--user-data-dir` is set to a temporary directory but can be overridden on a custom launcher as shown below.
39One reason to do this is to have a permanent Chrome user data directory inside the project directory to be able to
40install plugins there (e.g. JetBrains IDE Support plugin).
41
42```js
43customLaunchers: {
44 Chrome_with_debugging: {
45 base: 'Chrome',
46 chromeDataDir: path.resolve(__dirname, '.chrome')
47 }
48}
49```
50
51You can pass list of browsers as a CLI argument too:
52
53```bash
54$ karma start --browsers Chrome,Chrome_without_security
55```
56
57## Headless Chromium with Puppeteer
58
59The Chrome DevTools team created [Puppeteer](https://github.com/GoogleChrome/puppeteer) - it will automatically install Chromium for all
60platforms and contains everything you need to run it from within your CI.
61
62### Available Browsers
63*Note: Headless mode requires a browser version >= 59*
64
65- Chrome (CHROME_BIN)
66- ChromeHeadless (CHROME_BIN)
67- Chromium (CHROMIUM_BIN)
68- ChromiumHeadless (CHROMIUM_BIN)
69- ChromeCanary (CHROME_CANARY_BIN)
70- ChromeCanaryHeadless (CHROME_CANARY_BIN)
71- Dartium (DARTIUM_BIN)
72
73#### Usage
74```bash
75$ npm i -D puppeteer karma-chrome-launcher
76```
77
78```js
79// karma.conf.js
80process.env.CHROME_BIN = require('puppeteer').executablePath()
81
82module.exports = function(config) {
83 config.set({
84 browsers: ['ChromeHeadless']
85 })
86}
87```
88
89----
90
91For more information on Karma see the [homepage].
92
93[homepage]: http://karma-runner.github.com
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