infrastructure-http-headers-encodin-dataset-names-containing-non-ascii-characters-caus-ec24e27e

THEN Replace the plain filename in Content-Disposition with RFC 5987 compliant filename* using UTF-8 and URL encoding. Use urllib.parse.quote to encode the dataset name, then set the header as 'attachment; filename*=UTF-8\'\'{encoded_name}'.

import urllib.parse
encoded_name = urllib.parse.quote(f"{dataset_name}.csv")
headers = {"content-disposition": f"attachment; filename*=UTF-8''{encoded_name}", "content-type": "text/csv"}