From c9e23cc38abc96fd0bfa3f8a3d3a42045ec372d9 Mon Sep 17 00:00:00 2001
From: philippe <t4rk@outlook.com>
Date: Fri, 10 Apr 2026 11:35:42 -0400
Subject: [PATCH 1/2] fix fastapi websocket

---
 dash/backends/_fastapi.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dash/backends/_fastapi.py b/dash/backends/_fastapi.py
index 4e6266146f..edb5bade27 100644
--- a/dash/backends/_fastapi.py
+++ b/dash/backends/_fastapi.py
@@ -188,6 +188,7 @@ async def _handle_error(
 
     async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
         # Handle lifespan events (startup/shutdown)
+
         if scope["type"] == "lifespan":
             try:
                 dash_app = get_app()
@@ -199,7 +200,7 @@ async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
             return
 
         # Non-HTTP/WebSocket scopes pass through
-        if scope["type"] not in ("http", "websocket"):
+        if scope["type"] != "http":
             await self.app(scope, receive, send)
             return
 

From 0af47f130417c0d3310ea545ef43dc1ae1c9f8e9 Mon Sep 17 00:00:00 2001
From: philippe <t4rk@outlook.com>
Date: Fri, 10 Apr 2026 11:38:19 -0400
Subject: [PATCH 2/2] remove leftover prints

---
 dash/backends/_fastapi.py | 5 -----
 dash/dash.py              | 1 -
 2 files changed, 6 deletions(-)

diff --git a/dash/backends/_fastapi.py b/dash/backends/_fastapi.py
index edb5bade27..4e5bdad621 100644
--- a/dash/backends/_fastapi.py
+++ b/dash/backends/_fastapi.py
@@ -299,7 +299,6 @@ def setup_catchall(self, dash_app: Dash):
 
     def _setup_catchall(self):
         try:
-            print("Setting up catch-all route for unmatched paths", file=sys.stderr)
             dash_app = get_app()
 
             async def catchall(_request: Request):
@@ -318,10 +317,6 @@ def add_url_rule(
         methods: list[str] | None = None,
         include_in_schema: bool = False,
     ):
-        print(
-            f"Adding URL rule: {rule} -> {view_func} (endpoint: {endpoint}, methods: {methods})",
-            file=sys.stderr,
-        )
         if rule == "":
             rule = "/"
         if isinstance(view_func, str):
diff --git a/dash/dash.py b/dash/dash.py
index d17c3c4e4e..ea53edf341 100644
--- a/dash/dash.py
+++ b/dash/dash.py
@@ -637,7 +637,6 @@ def __init__(  # pylint: disable=too-many-statements, too-many-branches
         self._got_first_request = {"pages": False, "setup_server": False}
 
         if server:
-            print(f"init app from server {server}")
             self.init_app()
 
         self.logger.setLevel(logging.INFO)