Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503301_00773_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2b42055d-326a-41d5-88c7-dfc9c862fa55",
      "cw-dc7488fe-202b-4ff7-9c7a-c854b69e9bdb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-685e30e8-9572-4036-8bb7-b1893bc8f141",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503301_00773_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-dc7488fe-202b-4ff7-9c7a-c854b69e9bdb",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10503301_00773_u001",
      "navDate": "1842-12-31",
      "multId": "bsbmult00000010",
      "lastSearchUrl": null
    },
    "canvasIndex": 14,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503301_00773_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}