将 Werkzeug 版本从 2.0.3 更新到 2.1.0 后，每次运行服务器时都会出现错误，错误日志如下：
Exception happened during processing of request from ('127.0.0.1', 44612)
Traceback (most recent call last):
File "/usr/lib/python3.8/socketserver.py", line 683, in process_request_thread
self.finish_request(request, client_address)
File "/usr/lib/python3.8/socketserver.py", line 360, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/lib/python3.8/socketserver.py", line 747, in __init__
self.handle()
File "/home/oladhari/.virtualenvs/reachat/lib/python3.8/site-packages/werkzeug/serving.py", line 363, in handle
super().handle()
File "/usr/lib/python3.8/http/server.py", line 427, in handle
self.handle_one_request()
File "/usr/lib/python3.8/http/server.py", line 415, in handle_one_request
method()
File "/home/oladhari/.virtualenvs/reachat/lib/python3.8/site-packages/werkzeug/serving.py", line 243, in run_wsgi
self.environ = environ = self.make_environ()
File "/home/oladhari/.virtualenvs/reachat/lib/python3.8/site-packages/django_extensions/management/commands/runserver_plus.py", line …