Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/4135",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e2181deb-029f-43b5-8084-fd77975a8981",
      "cw-cb280058-c94a-45c9-861f-010084922558"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-89e2a47d-1049-4966-be8d-851b4dce59c0",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/4135",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cb280058-c94a-45c9-861f-010084922558"
  }
}