Will Miao 0e51851025 fix(preview): stream video files manually to avoid Windows sendfile crash ...

aiohttp's FileResponse uses _sendfile_native on Windows (IOCP-based), which crashes with ov.getresult() when the client disconnects mid-transfer. This happens constantly when users scroll through a gallery of animated previews (video files like .mp4/.webm).

Detect video extensions and stream manually via StreamResponse + chunked reads instead, gracefully handling ConnectionResetError. Images continue using FileResponse (small files, sendfile works fine).

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

2026-05-21 09:12:10 +08:00

3.9 KiB

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