🚥🐛 Run only Firefox on CI (fixes noref)

Karma tests continue to fail due to full page reload, only with
Chrome and only within CircleCI. For now, will not run tests on Chrome
in CircleCI.

related homezen#7

circle.yml

@@ -15,10 +15,6 @@ dependencies:
         - uname -a && . /etc/lsb-release && echo $DISTRIB_DESCRIPTION
         - npm i -g npm@latest
         - npm -v
-        - wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
-        - sudo sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
-        - sudo apt-get update
-        - sudo apt-get install google-chrome-stable
     post:
         - npm run check-deps
 

karma.conf.js

@@ -1,8 +1,10 @@
 const webpack = require('webpack')
 
+const isCI = !!process.env.CI
+
 module.exports = function(config) {
     config.set({
-        browsers: ['Chrome', 'Firefox'],
+        browsers: isCI ? ['Firefox'] : ['Chrome', 'Firefox'],
 
         files: [
             './src/*.test.js',