Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/31931",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3bc1df86-c6c1-4c82-bac2-6a6da51f37a1",
      "cw-d1cedf40-0fc5-4e97-8cb6-83abed0c3b8e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9fa49080-94b7-422c-b5d2-06e09be0f80b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/31931",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d1cedf40-0fc5-4e97-8cb6-83abed0c3b8e"
  }
}
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