Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/4023",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4e2248cb-4096-4b47-a7a2-fbb8b4b7a628",
      "cw-82347d3f-d5d6-490d-9f26-fb9e0d28215d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e469099b-88f0-4779-b4b2-91bf6305ee3c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/4023",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-82347d3f-d5d6-490d-9f26-fb9e0d28215d"
  }
}