OpenHands [Bug]: FastAPI WebSocket with staticfiles

Is there an existing issue for the same bug?

[x] I have checked the existing issues.

Describe the bug and reproduction steps

after i start openhands,

docker run -it \
    --pull=always \
    -e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:0.23-nikolaik \
    -e LOG_ALL_EVENTS=true \
    -e SANDBOX_USER_ID=$(id -u) \
    -e WORKSPACE_MOUNT_PATH=$WORKSPACE_BASE \
    -v $WORKSPACE_BASE:/opt/workspace_base \
    -v /var/run/docker.sock:/var/run/docker.sock \
    -v ~/.openhands-state:/.openhands-state \
    --add-host host.docker.internal:host-gateway \
    --name openhands-app \
    -p 3000:3000 \
    docker.all-hands.dev/all-hands-ai/openhands:0.23

webUI is connection, And I got error log

OpenHands Installation

Docker command in README

OpenHands Version

docker.all-hands.dev/all-hands-ai/openhands:0.23

Operating System

Linux

Logs, Errors, Screenshots, and Additional Context

ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/app/.venv/lib/python3.12/site-packages/uvicorn/protocols/websockets/wsproto_impl.py", line 235, in run_asgi
    result = await self.app(self.scope, self.receive, self.send)  # type: ignore[func-returns-value]
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in __call__
    return await self.app(scope, receive, send)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/engineio/async_drivers/asgi.py", line 75, in __call__
    await self.other_asgi_app(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/fastapi/applications.py", line 1054, in __call__
    await super().__call__(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/applications.py", line 113, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/middleware/errors.py", line 152, in __call__
    await self.app(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/middleware/base.py", line 101, in __call__
    await self.app(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/middleware/base.py", line 101, in __call__
    await self.app(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/middleware/base.py", line 101, in __call__
    await self.app(scope, receive, send)
  [Previous line repeated 1 more time]
  File "/app/.venv/lib/python3.12/site-packages/starlette/middleware/cors.py", line 77, in __call__
    await self.app(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/middleware/exceptions.py", line 62, in __call__
    await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
    raise exc
  File "/app/.venv/lib/python3.12/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
    await app(scope, receive, sender)
  File "/app/.venv/lib/python3.12/site-packages/starlette/routing.py", line 715, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/routing.py", line 735, in app
    await route.handle(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/routing.py", line 460, in handle
    await self.app(scope, receive, send)
  File "/app/.venv/lib/python3.12/site-packages/starlette/staticfiles.py", line 91, in __call__
    assert scope["type"] == "http"
           ^^^^^^^^^^^^^^^^^^^^^^^
AssertionError

Feb 13 '25 13:02 NICK-DUAN

but i can use it anyway

Feb 13 '25 13:02 NICK-DUAN

Weird. That's good that you can still use it. What linux dist are you running?

Feb 13 '25 15:02 mamoodi

Oh wait I'm getting this too when attaching my local filesystem.

Feb 13 '25 19:02 mamoodi

Weird. That's good that you can still use it. What linux dist are you running?

Tencent Linux, seems like ≈Centos6.6

# uname -r
6.6.26-1.0.tl4.x86_64

Feb 14 '25 01:02 NICK-DUAN

I did nothing, but seems this problem is gone, then I still want to why, if you know, please tell me

Feb 14 '25 10:02 NICK-DUAN

I think this happens when you attach a filesystem to OpenHands. I got it yesterday multiple times.

Feb 14 '25 14:02 mamoodi

But I still attach a filesystem now LOL, By environment:

export WORKSPACE_BASE=$(pwd)

docker run xxx \
    -e WORKSPACE_MOUNT_PATH=$WORKSPACE_BASE \
    -v $WORKSPACE_BASE:/opt/workspace_base \
    xxx

Feb 17 '25 02:02 NICK-DUAN

haha that's strange. Unsure but let's keep an eye on this.

Feb 17 '25 13:02 mamoodi

Hello OH team, just built the docker image from scratch and ran it for the first time using the Quickstart command from the README - also experiencing the same error. To be clear, I didn't attach a filesystem to OH.

docker run -it --rm --pull=always \
    -e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:0.26-nikolaik \
    -e LOG_ALL_EVENTS=true \
    -v /var/run/docker.sock:/var/run/docker.sock \
    -v ~/.openhands-state:/.openhands-state \
    -p 3000:3000 \
    --add-host host.docker.internal:host-gateway \
    --name openhands-app \
    docker.all-hands.dev/all-hands-ai/openhands:0.26

After running this, I get the same error mentioned by @NICK-DUAN.

ERROR:    Exception in ASGI application
Traceback (most recent call last):
File "/app/.venv/lib/python3.12/site-packages/uvicorn/protocols/websockets/wsproto_impl.py", line 235, in run_asgi
...

The localhost:3000 just outputs a 500 Internal Server Error

Feb 24 '25 22:02 mistermjtek

@mistermjtek When you say you built the docker image from scratch, what do you mean by that?

Feb 25 '25 14:02 mamoodi

@mamoodi it just means I had never previously built it before, and it was my first time running the command.

Mar 03 '25 11:03 mistermjtek