SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON
{
"manifest": {
"error": "SyntaxError: Unexpected token '<', \"<!DOCTYPE \"... is not valid JSON",
"id": "https://digital.libraries.psu.edu/iiif/info/maps1/3808/manifest.json",
"isFetching": false
},
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],
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"highlightAllAnnotations": false,
"id": "window-5b72311a-163f-4d2a-bf7d-2c47674dfc93",
"manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/3808/manifest.json",
"maximized": false,
"rangeId": null,
"rotation": null,
"selectedAnnotations": {},
"sideBarOpen": false,
"sideBarPanel": "info",
"thumbnailNavigationId": "cw-a9968a22-3abc-4732-97e5-797fe802d3a2"
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