[
  {
    "id": 1,
    "priority": 1,
    "action": {
      "type": "modifyHeaders",
      "responseHeaders": [
        {
          "header": "Access-Control-Allow-Origin",
          "operation": "set",
          "value": "*"
        }
      ]
    },
    "condition": {
      "urlFilter": "*",
      "resourceTypes": [
        "image",
        "stylesheet",
        "font",
        "script",
        "xmlhttprequest"
      ]
    }
  }
]