Automate answer to javascript alert message

Your macro does not work (URL expired?). But when I test an alert box it works just fine:

{
  "CreationDate": "2018-7-10",
  "Commands": [
    {
      "Command": "open",
      "Target": "https://www.quackit.com/javascript/javascript_alert_box.cfm",
      "Value": ""
    },
    {
      "Command": "selectFrame",
      "Target": "name=result1",
      "Value": ""
    },
    {
      "Command": "comment",
      "Target": "Click Alert!",
      "Value": ""
    },
    {
      "Command": "click",
      "Target": "/html/body/input",
      "Value": ""
    },
    {
      "Command": "selectFrame",
      "Target": "relative=top",
      "Value": ""
    },
    {
      "Command": "clickAndWait",
      "Target": "link=JavaScript Examples",
      "Value": ""
    }
  ]
}