message: Another attempt to fix browser tests on circle-ci.
diff: @@ -42,7 +42,7 @@ module.exports = function(config) {
  // - IE (only Windows; has to be installed with `npm install karma-ie-launcher`)
  // TODO: conditional to add IE + Edge | Safari depending on current OS.
  browsers: process.env.CIRCLE_PROJECT_REPONAME
  - ? ["Chrome", "Firefox"]
  + ? ["ChromeHeadless"]
  : ["IE", "Chrome", "Firefox", "Edge"],
  // If browser does not capture in given timeout [ms], kill it
  