Incorrect url handling of non-ascii characters in asgi worker mode

[benoitc]

Discussed in #3541

^{Originally posted by boxed March 9, 2026}

Type

Bug Report

Description

Reproduction here: https://github.com/boxed/gunicorn_urlencode

Django app with a single route ö/.

Running this project with gunicorn built in asgi worker results in 404:

gunicorn_urlencode.asgi:application --worker-class asgi -t 360000 --log-file - -w 4

Using the runserver, wsgi gunicorn, or uvicorn worker loads fine:

gunicorn_urlencode.asgi:application -k uvicorn_worker.UvicornWorker -t 360000 --log-file - -w 4

Steps to Reproduce (for bugs)

No response

Configuration

No response

Logs / Error Output

No response

Gunicorn Version

gunicorn 25.1.0

Python Version

Python 3.13.1

Worker Class

asgi (beta)

Operating System

macOS 15.7.4

Additional Context

No response

Checklist

• I have searched existing discussions and issues for duplicates
• I have checked the documentation and FAQ