Internationalised domain support in ooniprobe

When trying to run a test against an internationalised domain name (example españa.icom.museum, encoded in utf8), I get errors performing the GET requests through tor and over plain HTTP.

Command: ooniprobe -n blocking/http_requests -f url.txt

url.txt contains a single line with the example URL encoded in utf8.

Output is attached.

Are IDN URLs currently expected to work, and if not, is there any support planned?