Streaming stopped working for no reason using Bun and Hono

[bfzli]

So, we had implemented streaming for our AI service, and everything was working fine. The version of Hono was 4.3.4, and the Bun version was 1.1.34. The implementation was very simple using streamText. We were sending pieces of the response from the AI, and everything worked as expected.

However, now, after a month without any library switch or code change, it no longer streams the response but instead sends it all together before closing the stream. We spent a lot of time debugging, but everything seems to be structured well. Has anyone experienced something similar?

[owenlongbo]

The same

[bfzli]

Any update on this, because this is a Bun problem?

[coyotte508]

Try setting c.header("Content-Encoding", "Identity"); in your endpoint to disable compression.

Compression messes with streaming

[MathurAditya724]

Is this issue related - #4154?