Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/19521",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-48855f72-d71c-491a-aaef-cea864c84f53",
      "cw-1902b03e-12d7-402e-9d0c-467951bf5502"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7419bc82-6a71-4328-b4d6-351cec2db835",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/19521",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1902b03e-12d7-402e-9d0c-467951bf5502"
  }
}
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