Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/54989",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a75ab62d-1189-48c5-9439-41fdda1a1235",
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    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-41623f04-97d8-4511-8fe2-78d399b512b1",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/54989",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-95fd0133-34b8-4a17-9fc9-3e52b7263d6c"
  }
}
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