Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:35473/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:35473/canvas/CASPR210xDec._16_2014_50x.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
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    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-c8464e65-65a2-490e-a663-ca55f354305b",
    "manifestId": "https://zenodo.org/api/iiif/record:35473/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9067669f-0d3a-44b2-96d1-76ab1acf71b9",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
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}