http2 request not working under proxy URGENT

[piyush5566]

Hi

We are getting proxy_host and proxy_port as our method parameters, and below is how we are using them to make a POST request:

  if self.proxy_host==None or self.proxy_port==None:
        proxy_url=None
  else:
        proxy_url = "http://{}:{}".format(self.proxy_host,self.proxy_port)
   self.proxies = {
                       'http://': proxy_url,
                       'https://': proxy_url

                   }


  self.conn=httpx.Client(http2=True,http1=False,proxies=self.proxies,verify=False)
  response = self.conn.request(method,"http://{}:{}{}".format(self.dest_host,self.dest_port,uri),data=payload,headers=headers)
  


**ERROR**

Traceback (most recent call last):
File "/env/lib64/python3.9/site-packages/httpx/_transports/default.py", line 61, in map_httpcore_exceptions
yield
File "/env/lib64/python3.9/site-packages/httpx/_transports/default.py", line 181, in handle_request
status_code, headers, byte_stream, extensions = self._pool.handle_request(
File "/env/lib64/python3.9/site-packages/httpcore/_sync/http_proxy.py", line 115, in handle_request
return self._forward_request(
File "/env/lib64/python3.9/site-packages/httpcore/_sync/http_proxy.py", line 175, in _forward_request
) = connection.handle_request(
File "/env/lib64/python3.9/site-packages/httpcore/_sync/connection.py", line 148, in handle_request
return self.connection.handle_request(
File "/env/lib64/python3.9/site-packages/httpcore/_sync/http11.py", line 128, in handle_request
) = self._receive_response(timeout)
File "/env/lib64/python3.9/site-packages/httpcore/_sync/http11.py", line 189, in _receive_response
event = self._receive_event(timeout)
File "/env/lib64/python3.9/site-packages/httpcore/_sync/http11.py", line 222, in _receive_event
event = self._h11_state.next_event()
File "/usr/lib64/python3.9/contextlib.py", line 135, in exit
self.gen.throw(type, value, traceback)
File "/env/lib64/python3.9/site-packages/httpcore/_exceptions.py", line 12, in map_exceptions
raise to_exc(exc) from None
httpcore.RemoteProtocolError: illegal request line

  The above exception was the direct cause of the following exception:

  Traceback (most recent call last):
    File "/env/lib64/python3.9/site-packages/behave/model.py", line 1329, in run
      match.run(runner.context)
    File "/env/lib64/python3.9/site-packages/behave/matchers.py", line 98, in run
      self.func(context, *args, **kwargs)
    File "/var/lib/jenkins/cncats/ocnftest/sepp_steps.py", line 506, in step_impl
      context.response,context.http2_conn_details = context.clients[client_id].NF_service(method,baseuri,version,uid,serviceOperationUri,headers=header_dic,payload=json.dumps(json_data),times=context.times)
    File "/var/lib/jenkins/cncats/ocnftest_lib/NF_client.py", line 234, in NF_service
      response = self.conn.request(method,"http://{}:{}{}".format(self.dest_host,self.dest_port,uri),data=payload,headers=headers)
    File "/env/lib64/python3.9/site-packages/httpx/_client.py", line 785, in request
      return self.send(
    File "/env/lib64/python3.9/site-packages/httpx/_client.py", line 871, in send
      response = self._send_handling_auth(
    File "/env/lib64/python3.9/site-packages/httpx/_client.py", line 907, in _send_handling_auth
      response = self._send_handling_redirects(
    File "/env/lib64/python3.9/site-packages/httpx/_client.py", line 943, in _send_handling_redirects
      response = self._send_single_request(request, timeout)
    File "/env/lib64/python3.9/site-packages/httpx/_client.py", line 977, in _send_single_request
      (status_code, headers, stream, extensions) = transport.handle_request(
    File "/env/lib64/python3.9/site-packages/httpx/_transports/default.py", line 181, in handle_request
      status_code, headers, byte_stream, extensions = self._pool.handle_request(
    File "/usr/lib64/python3.9/contextlib.py", line 135, in __exit__
      self.gen.throw(type, value, traceback)
    File "/env/lib64/python3.9/site-packages/httpx/_transports/default.py", line 78, in map_httpcore_exceptions
      raise mapped_exc(message) from exc
  httpx.RemoteProtocolError: illegal request line

Note:

1. with hyper.HTTP20Connection instead of httpx.Client it is working fine
2. here proxy_url is url for kubernetes ingressgateway service