Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://manifests.collections.yale.edu/yuag/obj/84207",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
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      "cw-1bd354c9-1e37-4e09-9a1f-5b597b07462e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-499d3adf-5302-435f-beee-96f395b0ea7e",
    "manifestId": "https://manifests.collections.yale.edu/yuag/obj/84207",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1bd354c9-1e37-4e09-9a1f-5b597b07462e"
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}