Mirador viewer

SyntaxError: Unexpected end of JSON input
{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/21062",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ad87df4e-707c-4447-a782-2b5c44b5ce48",
      "cw-407f4985-b0d2-47b8-a2c8-bc0fe2fd0ce2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-75e2e1ee-62ee-4946-b473-33a05e97b3dc",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/21062",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-407f4985-b0d2-47b8-a2c8-bc0fe2fd0ce2"
  }
}
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