wct.conf.json

{
  "npm": true,
  "moduleResolution": "node",
  "suites": [
    "src/test/*.html"
  ],
  "plugins": {
    "local": {
      "disabled": true,
      "browsers": ["all"],
      "browserOptions": {
        "chrome": [
          "headless",
          "disable-gpu"
        ],
        "firefox": [
          "-headless"
        ]
      }
    },
    "sauce": {
      "disabled": true,
      "browsers": [
        {
          "browserName": "firefox",
          "platform": "Linux",
          "version": "latest"
        },
        {
          "browserName": "internet explorer",
          "platform": "Windows 8.1",
          "version": "11"
        },
        {
          "browserName": "microsoftedge",
          "platform": "Windows 10",
          "version": "latest"
        },
        {
          "browserName": "safari",
          "platform": "OS X 10.13",
          "version": "latest"
        }
      ]
    }
  }
}