Setting headers for SSE annotated Multi resources is ignoring headers #44902
Description
Describe the bug
Setting response headers as shown below does not work when the resource is annotated with @Produces(MediaType.SERVER_SENT_EVENTS) or @RestStreamElementType(MediaType.APPLICATION_JSON).
@POST
@Path("sse-multi")
@Produces(MediaType.SERVER_SENT_EVENTS)
public Multi<String> sseMulti() {
return RestMulti.fromMultiData(Multi.createFrom().items("hello", "world")).header("Foo", "Bar").build();
}See also #44898 (comment)
Expected behavior
headers are set as in
@POST
@Path("multi")
public Multi<String> multi() {
return RestMulti.fromMultiData(Multi.createFrom().items("hello", "world")).header("Foo", "Bar").build();
}Actual behavior
header is ignored
How to Reproduce?
I will provide a draft PR with a unit test.
Output of uname -a or ver
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Output of java -version
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Quarkus version or git rev
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Build tool (ie. output of mvnw --version or gradlew --version)
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Additional information
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