Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/56827",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e5f5bec9-4ab9-40b9-b346-57a91f02691a",
      "cw-d5c3f4d3-1616-4ad6-8dfa-0dd4a9ff50a2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1e51c8fa-1fb0-47c1-98a5-7e7f67acdc79",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/56827",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d5c3f4d3-1616-4ad6-8dfa-0dd4a9ff50a2"
  }
}
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