TypeError at /esap-api/ida/deploy

Hitting https://sdc-dev.astron.nl/esap-api/ida/deploy?facility=https://mybinder.org/&workflow=https://github.com/AMIGA-IAA/hcg-16 (or selecting Interactive Analysis → CSIC-IAA HCG-16 workflow → MyBinder) gives a stack trace:

TypeError at /esap-api/ida/deploy
quote_from_bytes() expected bytes
Request Method:	GET
Request URL:	https://sdc-dev.astron.nl/esap-api/ida/deploy?facility=https://mybinder.org/&workflow=https://github.com/AMIGA-IAA/hcg-16
Django Version:	4.0.2
Exception Type:	TypeError
Exception Value:	
quote_from_bytes() expected bytes
Exception Location:	/usr/local/lib/python3.10/urllib/parse.py, line 895, in quote_from_bytes
Python Executable:	/usr/local/bin/python
Python Version:	3.10.7
Python Path:	
['/src',
 '/usr/local/bin',
 '/usr/local/lib/python310.zip',
 '/usr/local/lib/python3.10',
 '/usr/local/lib/python3.10/lib-dynload',
 '/usr/local/lib/python3.10/site-packages',
 '/src/esap/configuration']
Server time:	Wed, 05 Oct 2022 05:22:25 +0000