Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10502075_00039_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-35fce7e9-9221-4e2b-b22e-e21d287a0b04",
      "cw-1b76410e-47a1-49d4-88c8-9ca3fb03b156"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8b3940df-023d-431d-96b9-8e4c27561446",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10502075_00039_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-1b76410e-47a1-49d4-88c8-9ca3fb03b156",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10502075_00039_u001",
      "navDate": "1819-05-01",
      "multId": "bsbmult00000267",
      "lastSearchUrl": null
    },
    "canvasIndex": -1,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10502075_00039_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": true,
    "view": "book"
  }
}