Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/19877",
    "isFetching": false
  },
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    "highlightAllAnnotations": false,
    "id": "window-eb0fca81-d02c-4856-9669-3ccb7b37a00f",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/19877",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7dc517a3-8838-4cd1-8b71-9ab7e1d27897"
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}