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/maps1/27424/manifest.json",
"isFetching": false
},
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"companionAreaOpen": true,
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],
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"highlightAllAnnotations": false,
"id": "window-2c8288fd-0ab1-4e47-9216-e5593fb51de6",
"manifestId": "https://digital.libraries.psu.edu/iiif/info/maps1/27424/manifest.json",
"maximized": false,
"rangeId": null,
"rotation": null,
"selectedAnnotations": {},
"sideBarOpen": false,
"sideBarPanel": "info",
"thumbnailNavigationId": "cw-4d98ac90-6983-4e56-8a15-bdb05189ab82"
}
}