Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52858",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e6d76881-8b9a-4828-b5e7-e3a553aa65cf",
      "cw-ca8e52e1-32ce-46a7-a523-088027324745"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1ebd5cfe-6bee-4bd0-b48a-578c61e9c911",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52858",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ca8e52e1-32ce-46a7-a523-088027324745"
  }
}
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