Page.Frame

{
  "id": "Frame",
  "type": "object",
  "description": "Information about the Frame on the page.",
  "properties": [
    {
      "name": "id",
      "type": "string",
      "description": "Frame unique identifier."
    },
    {
      "name": "parentId",
      "type": "string",
      "optional": true,
      "description": "Parent frame identifier."
    },
    {
      "name": "loaderId",
      "$ref": "Network.LoaderId",
      "description": "Identifier of the loader associated with this frame."
    },
    {
      "name": "name",
      "type": "string",
      "optional": true,
      "description": "Frame's name as specified in the tag."
    },
    {
      "name": "url",
      "type": "string",
      "description": "Frame document's URL."
    },
    {
      "name": "securityOrigin",
      "type": "string",
      "description": "Frame document's security origin."
    },
    {
      "name": "mimeType",
      "type": "string",
      "description": "Frame document's mimeType as determined by the browser."
    }
  ]
}