VersionResourceResolver should add ETag headers when resolving resources [SPR-13382]

[spring-projects-issues]

Brian Clozel opened SPR-13382 and commented

VersionStrategy and VersionResourceResolver can resolve resources using version strings.
Those resources are then served without using this version information to set the ETag header.

The VersionResourceResolver should by default add this header value as this is valuable for HTTP clients. It should also provide an optional configuration setting to disable that behavior.

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Affects: 4.2 GA

Issue Links:

• Preserve HTTP headers when caching resources in CachingResourceResolver [SPR-13817] #18390 Preserve HTTP headers when caching resources in CachingResourceResolver

Referenced from: commits 190eb6a

[spring-projects-issues]

Brian Clozel commented

As of this commit, the ETag header is automatically added in HTTP responses when a VersionResourceResolver is used.

[spring-projects-issues]

Christian Köberl commented

It seems that this just works on the first request - because the second (and further) request are usually handled via the CachingResourceResolver.

[spring-projects-issues]

Brian Clozel commented

Thanks Christian Köberl, I've created #18390!