Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/50000",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e3ec5f13-f063-4cf1-b9ef-d6d6064eaf32",
      "cw-cd6807f3-d97d-4292-85e6-cd7541bd7dc6"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ce5cf836-ff33-483c-a69f-8a93017c7e7e",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/50000",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cd6807f3-d97d-4292-85e6-cd7541bd7dc6"
  }
}