Gradio still reports processing after fatal exceptions

[edmcman]

Describe the bug

When a fatal exception occurs, the UI should stop the countdown and not report the status as "processing".

If show_error is False or if the user misses the error modal, the user may be confused and continue to wait (needlessly).

Have you searched existing issues? 🔎

• I have searched and found no existing issues

Reproduction

import gradio as gr
def reverse(text):
    assert False, "oh no"
    return text[::-1]
demo = gr.Interface(reverse, "text", "text")
demo.launch(show_error=True)

Screenshot

Logs

Traceback (most recent call last):
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/gradio/queueing.py", line 625, in process_events
    response = await route_utils.call_process_api(
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/gradio/route_utils.py", line 322, in call_process_api
    output = await app.get_blocks().process_api(
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/gradio/blocks.py", line 2096, in process_api
    result = await self.call_function(
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/gradio/blocks.py", line 1643, in call_function
    prediction = await anyio.to_thread.run_sync(  # type: ignore
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/anyio/to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 2461, in run_sync_in_worker_thread
    return await future
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 962, in run
    result = context.run(func, *args)
  File "/home/ed/.pyenv/versions/gradio/lib/python3.10/site-packages/gradio/utils.py", line 890, in wrapper
    response = f(*args, **kwargs)
  File "/tmp/blah.py", line 3, in reverse
    assert False, "oh no"
AssertionError: oh no

System Info

Gradio Environment Information:
------------------------------
Operating System: Linux
gradio version: 5.17.1
gradio_client version: 1.7.1

------------------------------------------------
gradio dependencies in your environment:

aiofiles: 23.2.1
anyio: 4.8.0
audioop-lts is not installed.
fastapi: 0.115.8
ffmpy: 0.5.0
gradio-client==1.7.1 is not installed.
httpx: 0.28.1
huggingface-hub: 0.29.1
jinja2: 3.1.5
markupsafe: 2.1.5
numpy: 2.2.3
orjson: 3.10.15
packaging: 24.2
pandas: 2.2.3
pillow: 11.1.0
pydantic: 2.10.6
pydub: 0.25.1
python-multipart: 0.0.20
pyyaml: 6.0.2
ruff: 0.9.7
safehttpx: 0.1.6
semantic-version: 2.10.0
starlette: 0.45.3
tomlkit: 0.13.2
typer: 0.15.1
typing-extensions: 4.12.2
urllib3: 2.3.0
uvicorn: 0.34.0
authlib; extra == 'oauth' is not installed.
itsdangerous; extra == 'oauth' is not installed.


gradio_client dependencies in your environment:

fsspec: 2025.2.0
httpx: 0.28.1
huggingface-hub: 0.29.1
packaging: 24.2
typing-extensions: 4.12.2
websockets: 14.2

Severity

I can work around it