From 4b5e5202b51b672677841c12296451fe11d9cc52 Mon Sep 17 00:00:00 2001
From: Miguel Grinberg <miguel.grinberg@gmail.com>
Date: Sun, 18 Jul 2021 17:31:29 +0100
Subject: [PATCH] Remove unused SSL arguments from eventlet server options
 (Fixes #1639)

---
 src/flask_socketio/__init__.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/flask_socketio/__init__.py b/src/flask_socketio/__init__.py
index 7c4ea535..ef7b9e61 100644
--- a/src/flask_socketio/__init__.py
+++ b/src/flask_socketio/__init__.py
@@ -614,9 +614,9 @@ def run_server():
                             'ciphers']
                 ssl_params = {k: kwargs[k] for k in kwargs
                               if k in ssl_args and kwargs[k] is not None}
+                for k in ssl_args:
+                    kwargs.pop(k, None)
                 if len(ssl_params) > 0:
-                    for k in ssl_params:
-                        kwargs.pop(k)
                     ssl_params['server_side'] = True  # Listening requires true
                     eventlet_socket = eventlet.wrap_ssl(eventlet_socket,
                                                         **ssl_params)