quarkus.http.enable-compression=true adds content-encoding gzip even for http 204 No content #49879
Description
Describe the bug
When http compress is enabled, content-encoding : gzip is added as http header for http 204 No Content cases which is not standard wrt http protocol. In your case; Apigee was failing with http 502 at gateway side
Expected behavior
When http compress is enabled, For http 204 No Content cases, following headers should not be added to response
Content-Length
Content-Encoding
Transfer-Encoding
https://tools.ietf.org/html/rfc7231#section-6.3.5
Actual behavior
When http compress is enabled, For http 204 No Content cases, Content-Encoding : gzip header added to response
How to Reproduce?
RESTEasy reactive controller
quarkus.http.enable-compression=true
@POST
@Path("/compression")
public void createSms() {
Log.info("Compression is called");
}
Output of uname -a or ver
No response
Output of java -version
openjdk version "21" 2023-09-19 OpenJDK Runtime Environment (build 21+35-2513) OpenJDK 64-Bit Server VM (build 21+35-2513, mixed mode, sharing)
Quarkus version or git rev
3.20.2
Build tool (ie. output of mvnw --version or gradlew --version)
------------------------------------------------------------ Gradle 8.14.2 ------------------------------------------------------------ Build time: 2025-06-05 13:32:01 UTC Revision: 30db2a3bdfffa9f8b40e798095675f9dab990a9a Kotlin: 2.0.21 Groovy: 3.0.24 Ant: Apache Ant(TM) version 1.10.15 compiled on August 25 2024 Launcher JVM: 21 (Oracle Corporation 21+35-2513)
Additional information
No response