无法在野生动物园上运行webdriver.io javascript测试

Question

我正在尝试在多个浏览器上执行我的webdriver.io javascript测试。它适用于Firefox和Chrome，但不适用于Safari。它会同时启动Firefox和chrome的并行执行，但是在chrome和firefox上运行所有测试场景后，它会无限期地保留Safari的执行/不执行Safari的操作，而且也不会结束运行。我的配置文件包含以下浏览器信息：

  capabilities: [
    {
        // maxInstances can get overwritten per capability. So if you have an in-house Selenium
        // grid with only 5 firefox instances available you can make sure that not more than
        // 5 instances get started at a time.
        maxInstances: 1,
        //
        browserName: 'chrome'
    },

    {
        // maxInstances can get overwritten per capability. So if you have an in-house Selenium
        // grid with only 5 firefox instances available you can make sure that not more than
        // 5 instances get started at a time.
        maxInstances: 1,
        //
        browserName: 'firefox'
    },
        {
        // maxInstances can get overwritten per capability. So if you have an in-house Selenium
        // grid with only 5 firefox instances available you can make sure that not more than
        // 5 instances get started at a time.
        maxInstances: 1,
        //
        browserName: 'safari'
    },

]，