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Issue scope

Docker / Kubernetes

Describe the bug

If I runSWS with my "frontend" package, with both regular and pre-compressed files (.gzip), I see an unexpectedcontent-encoding returned bySWS:content-encoding: gzip, gzip.

After verification, the content is packaged twice, aka agzip inside agzip.

This generates issues with Apple based browsers, because they don't processgzip twice and so can't parsejs orcss after the first "unpackaging".

How to reproduce it

Find attached files I have generated, with the unexpected result inSWS:

app-css.zip

If I run theSWS withdocker run -it --rm -p 8080:8080 ui-for-testing, using the following configuration:

[general]host ="::"port =8080log-level ="info"cache-control-headers =truecompression =truecompression-static =truesecurity-headers =truedirectory-listing =falseredirect-trailing-slash =trueignore-hidden-files =true

I get the following result when I run the followingcurl call:

curl'http://localhost:8080/app.min.css' \      -H'Accept: */*' \      -H'Accept-Encoding: gzip' \      -v -o nul&| grep content-encoding< content-encoding: gzip, gzip

If I setcompression-static = false, the result is "normal", but I suspect the compression is done bySWS and doesn't leverage the pre-builtgzip file.

curl 'http://localhost:8080/app.min.css' \      -H 'Accept: */*' \      -H 'Accept-Encoding: gzip' \      -v -o nul &| grep content-encoding< content-encoding: gzip

Expected behavior

I expect the system to leverage the pre-buildgzip and returns acontent-type with onlygzip once.

Complementary information

From the investigation I did, this bug has been introduced after2.31.0.

If I change myDockerfile to2.32.0, I have the issue, but I don't have it with2.31.0, of course with the same config and files.

Build target

Docker linux/amd64

Environment and specs

• static-web-server: [e.g. v2.32.0+]
• Rust: [e.g. v1.78.0]
• OS: Distrolesss
• Arch: x86_64 (64-bit), ARM (32-bit), ARM64 (64-bit)
• Docker: 27.1.1
• Client: All (Safari, Chrome, Arc,curl)

Additional context

This issue has been found while developing on my application,Podcast-Server, and you can find the code used by the UIhere