Can not decode content-encoding: zstd

[seriaati]

Describe the bug

If you have aiohttp 3.13.0 and zstandard installed, exception "Can not decode content-encoding: zstd" is raised.

To Reproduce

pip install aiohttp
pip install zstandard

import asyncio
import aiohttp


async def main() -> None:
    async with aiohttp.ClientSession() as session:
        async with session.get("https://hoyo-codes.seria.moe/codes?game=genshin") as resp:
            await resp.json()


asyncio.run(main())

Expected behavior

JSON is parsed correctly without errors.

Logs/tracebacks

c:/Users/Seria/Documents/GitHub/hoyo-buddy/test.py
Traceback (most recent call last):
  File "C:\Users\Seria\Documents\GitHub\hoyo-buddy\.venv\Lib\site-packages\aiohttp\http_parser.py", line 1018, in feed_data      
    chunk = self.decompressor.decompress_sync(chunk)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Seria\Documents\GitHub\hoyo-buddy\.venv\Lib\site-packages\aiohttp\compression_utils.py", line 306, in decompress_sync
    return self._obj.decompress(data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
zstandard.backend_c.ZstdError: could not determine content size in frame header

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "aiohttp/_http_parser.pyx", line 761, in aiohttp._http_parser.cb_on_body
    pyparser._payload.feed_data(body, length)
  File "C:\Users\Seria\Documents\GitHub\hoyo-buddy\.venv\Lib\site-packages\aiohttp\http_parser.py", line 1020, in feed_data      
    raise ContentEncodingError(
aiohttp.http_exceptions.ContentEncodingError: 400, message:
  Can not decode content-encoding: zstd

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

Traceback (most recent call last):
  File "c:\Users\Seria\Documents\GitHub\hoyo-buddy\test.py", line 11, in <module>
    asyncio.run(main())
  File "C:\Users\Seria\AppData\Roaming\uv\python\cpython-3.12.10-windows-x86_64-none\Lib\asyncio\runners.py", line 195, in run   
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "C:\Users\Seria\AppData\Roaming\uv\python\cpython-3.12.10-windows-x86_64-none\Lib\asyncio\runners.py", line 118, in run   
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Seria\AppData\Roaming\uv\python\cpython-3.12.10-windows-x86_64-none\Lib\asyncio\base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "c:\Users\Seria\Documents\GitHub\hoyo-buddy\test.py", line 8, in main
    await resp.json()
  File "C:\Users\Seria\Documents\GitHub\hoyo-buddy\.venv\Lib\site-packages\aiohttp\client_reqrep.py", line 753, in json
    await self.read()
  File "C:\Users\Seria\Documents\GitHub\hoyo-buddy\.venv\Lib\site-packages\aiohttp\client_reqrep.py", line 695, in read
    self._body = await self.content.read()
                 ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Seria\Documents\GitHub\hoyo-buddy\.venv\Lib\site-packages\aiohttp\streams.py", line 400, in read
    raise self._exception
aiohttp.client_exceptions.ClientPayloadError: 400, message:
  Can not decode content-encoding: zstd

Python Version

3.12.10

aiohttp Version

3.13.0

multidict Version

6.7.0

propcache Version

0.4.1

yarl Version

1.22.0

OS

Ubuntu

Related component

Client, Server Client

Additional context

No response

Code of Conduct

• I agree to follow the aio-libs Code of Conduct

[ZhaoMJ]

Same issue that's fixed by #11623

[Dreamsorcerer]

We'll push a .1 release by the end of the week. Note that you'll need to install backports.zstd instead from that release.

[Dreamsorcerer]

Let me know if that's not resolved the problem.