Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/67979",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1a93bfe1-8c16-4367-8628-00c293a77ec1",
      "cw-fbd904a4-2be2-4ac0-a7e3-0b5e1ffcd044"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3b556972-bbde-4161-8a5b-9572b27edebc",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/67979",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-fbd904a4-2be2-4ac0-a7e3-0b5e1ffcd044"
  }
}