GET doesn't return last-modified header

[tpendragon]

{"date"=>"Tue, 04 Apr 2017 17:20:00 GMT",
 "link"=>
  "<http://www.w3.org/ns/ldp#BasicContainer>; rel=\"type\", <http://www.w3.org/ns/ldp#Resource>; rel=\"type\", <http://localhost:8080/timemaps/rest/testing/006b958a-a408-40e4-bc12-7b7668e0bf4e/369ffd0584e985eb>; rel=\"timemap\"",
 "etag"=>"W/\"25f3807ea9ce2bc0978e15b9ca2e7c5f\"",
 "allow"=>"GET,HEAD,OPTIONS,PATCH,POST,PUT",
 "accept-post"=>"text/turtle,application/ld+json",
 "accept-patch"=>"application/sparql-update",
 "content-type"=>"text/turtle",
 "transfer-encoding"=>"chunked",
 "server"=>"Jetty(9.3.6.v20151106)"}

[barmintor]

is this a bug or a feature request? It's not in the Fedora API spec or the LDP spec, right?

[barmintor]

@tpendragon just checking in here again: is this necessary for Valkyrie? Would help me prioritize work this week.