## Bug Report: Connection error on Ubuntu due to illegal HTTP header value

[laserwang]

What version of Kimi Code CLI is running?

1.17.0

Which open platform/subscription were you using?

kimi codee

Which model were you using?

kimi-for-coding

What platform is your computer?

Ubuntu 22.04.1 LTS

What issue are you seeing?

kimi chatfails with "Connection error", whilekimi usage` works fine.

What steps can reproduce the bug?

1. Install kimi-cli on Ubuntu 22.04
2. Run kimi login (success)
3. Run kimi usage (works fine)
4. Run kimi -p "hello" --print (fails with Connection error)

What is the expected behavior?

Chat should respond，work like kimi usage.

now: $ kimi -p "hello" --print
hello
TurnBegin(user_input='hello')
StepBegin(n=1)
StepInterrupted()
Connection error.

### Additional information

From `~/.kimi/logs/kimi.log`, the error is:
httpx.LocalProtocolError: Illegal header value b'#101~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 11 13:19:54 UTC '

reinstall kimi cli not work

The system also install openclaw， use the same coding plan from kimi code。 

[Br1an67]

This issue has been resolved by #1401 (fix(oauth): strip whitespace from HTTP header values on Linux), which sanitizes all HTTP header values via _ascii_header_value() — stripping trailing whitespace and filtering non-ASCII characters before sending. The fix is available in kimi-cli v1.18.0+. This issue can be closed.