Response headers are not capitalized in 0.12
Open
Nobody has claimed this yet.
A-server
C-feature
E-medium
- Dominant language
- Rust
- Stars
- 16.3k
- Forks
- 1.8k
- Avg merge
- 1d 22h
- Merged PRs (30d)
- 14
Description
I'm running Hyper server and I noticed that capitalization of response headers was lost somewhere between the versions 0.11.27 and 0.12.1. Is this intentional? New behavior:

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the response-header behavior in Hyper 0.12.1 and compare it with 0.11.27, using the example shown in the issue. Trace the response-header handling to identify where capitalization changes, then add or update a regression test showing the expected header casing.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- api
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100