1. Which version of Caddy are you using (caddy -version)?

1.0.3

2. What are you trying to do?

use gzip compression in combination with HEAD and static file hosting

3. What is your Caddyfile?

localhost:2015
gzip

4. How did you run Caddy (give the full command and describe the execution environment)?

caddy on nixpkgs

5. Please paste any relevant HTTP request(s) here.

curl -I --compressed http://localhost:2015/test.txt (or any other file that exists and would be gzipped normally)

6. What did you expect to see?

a Content-Encoding of gzip and a Content-Length of about 13000, which is the size of the gzipped text file

7. What did you see instead (give full error messages and/or log)?

a Content-Encoding of gzip and a Content-Length of ... 23, always, no matter what file i try to read (presuming it gets gzip'd)

8. Why is this a bug, and how do you think this should be fixed?

The Content-Length does not match the gzip'd content, and instead matches the size of a gzip'd empty file, which is not what this is.

9. What are you doing to work around the problem in the meantime?

disabling compression :(

10. Please link to any related issues, pull requests, and/or discussion.

(N/A)