Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/21204",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8c73776e-e312-497f-a4d3-880964d90208",
      "cw-3a92036b-ee93-45f4-a8b2-5d795944817b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c7eaf5ac-1528-492d-8ef9-c1e272a6b018",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/21204",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3a92036b-ee93-45f4-a8b2-5d795944817b"
  }
}
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