searchForSeries fails with 406 error

[xenonwellz]

https://server-url.com/v1/studies/{study_uid}/series

while hitting this endpoint, I get a 406 error. I noticed the accept headers
Accept: application/dicom+json, multipart/related; type=application/octet-stream

but if i try to send the request with the following accept header
Accept: application/dicom+json

PS: this endpoint is initiated with
const client = new DICOMwebClient.api.DICOMwebClient({url});
client.searchForSeries.then()