Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68666",
    "isFetching": false
  },
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    "companionAreaOpen": true,
    "companionWindowIds": [
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    "highlightAllAnnotations": false,
    "id": "window-a52a5789-1683-4378-b5c5-2bea2726ed4e",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68666",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f77fb4f0-8235-4e66-973a-0a6606b35ae6"
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}