python network_error ai_generated true

werkzeug.routing.exceptions.RequestRedirect: 308 Permanent Redirect

ID: python/flask-werkzeug-proxy-fix

Also available as: JSON · Markdown · 中文
80%Fix Rate
82%Confidence
0Evidence
2024-08-30First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

A request hits a route without the trailing slash while the route is defined with one; Werkzeug redirects and the client does not follow.

generic

中文

请求访问的路由缺少尾部斜杠，而路由定义带斜杠；Werkzeug 重定向但客户端未跟随。

Workarounds

  1. 90% success 
    requests.get(url, allow_redirects=True)
  2. 92% success 
    url_for('items')  # emits trailing slash if route defines it

Dead Ends

Common approaches that don't work:

  1. 75% fail

    Solves only one form; canonical URL ambiguity remains.

  2. 85% fail

    The redirect is a Werkzeug routing exception, not an app error.