[
    {
      "id" : 1,
      "priority": 1,
      "action": {
        "type": "modifyHeaders",
        "requestHeaders": [
          { "header": "User-Agent", "operation": "set", "value": "oculusbrowser" }
        ]
      },
      "condition" : {
        "urlFilter" : "|http*",
        "resourceTypes" : ["script", "main_frame"],
        "initiatorDomains": [
            "youtube.com",
            "googlevideo.com"
          ]
      }
    }
  ]