Blob Cache Control not being set in Google Cloud Storage

19:36:19.634 [main] DEBUG o.j.rest.internal.InvokeHttpMethod - >> invoking Object:multipartUpload
19:36:19.710 [main] DEBUG o.j.rest.internal.InvokeHttpMethod - >> invoking oauth2:authorize
19:36:19.711 [main] DEBUG o.j.h.i.JavaUrlHttpCommandExecutorService - Sending request 1139593014: POST https://accounts.google.com/o/oauth2/token HTTP/1.1
19:36:19.711 [main] DEBUG jclouds.wire - >> "grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Ajwt-bearer&assertion=*********"
19:36:19.712 [main] DEBUG jclouds.headers - >> POST https://accounts.google.com/o/oauth2/token HTTP/1.1
19:36:19.712 [main] DEBUG jclouds.headers - >> Accept: application/json
19:36:19.712 [main] DEBUG jclouds.headers - >> Content-Type: application/x-www-form-urlencoded
19:36:19.712 [main] DEBUG jclouds.headers - >> Content-Length: 747
19:36:20.563 [main] DEBUG o.j.h.i.JavaUrlHttpCommandExecutorService - Receiving response 1139593014: HTTP/1.1 200 OK
19:36:20.563 [main] DEBUG jclouds.headers - << HTTP/1.1 200 OK
19:36:20.563 [main] DEBUG jclouds.headers - << Transfer-Encoding: chunked
19:36:20.563 [main] DEBUG jclouds.headers - << Accept-Ranges: none
19:36:20.564 [main] DEBUG jclouds.headers - << X-Frame-Options: SAMEORIGIN
19:36:20.564 [main] DEBUG jclouds.headers - << Alt-Svc: quic=":443"; ma=2592000; v="46,43,39"
19:36:20.564 [main] DEBUG jclouds.headers - << Server: ESF
19:36:20.564 [main] DEBUG jclouds.headers - << X-Content-Type-Options: nosniff
19:36:20.564 [main] DEBUG jclouds.headers - << Vary: Origin,Accept-Encoding
19:36:20.564 [main] DEBUG jclouds.headers - << Vary: Referer
19:36:20.564 [main] DEBUG jclouds.headers - << Vary: X-Origin
19:36:20.564 [main] DEBUG jclouds.headers - << X-XSS-Protection: 0
19:36:20.564 [main] DEBUG jclouds.headers - << Date: Wed, 11 Sep 2019 11:36:20 GMT
19:36:20.564 [main] DEBUG jclouds.headers - << Cache-Control: private
19:36:20.564 [main] DEBUG jclouds.headers - << Content-Type: application/json; charset=utf-8
19:36:20.567 [main] DEBUG jclouds.wire - << "{[\n]"
19:36:20.567 [main] DEBUG jclouds.wire - << "  "access_token": "******"
19:36:20.567 [main] DEBUG jclouds.wire - << "  "expires_in": 3600,[\n]"
19:36:20.567 [main] DEBUG jclouds.wire - << "  "token_type": "Bearer"[\n]"
19:36:20.567 [main] DEBUG jclouds.wire - << "}"
19:36:20.571 [main] DEBUG o.j.h.i.JavaUrlHttpCommandExecutorService - Sending request -894182501: POST https://www.googleapis.com/upload/storage/v1/b/***************/o?uploadType=multipart HTTP/1.1
19:36:20.572 [main] DEBUG jclouds.wire - >> "--multipart_boundary[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "Content-Disposition: form-data; name="Metadata"[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "Content-Type: application/json[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "{"name":"room.jpg","size":13607,"contentType":"application/unknown","storageClass":"STANDARD","metadata":{}}[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "--multipart_boundary[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "Content-Disposition: form-data; name="room.jpg"[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "Content-Type: application/unknown[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "[\r][\n]"
19:36:20.572 [main] DEBUG jclouds.wire - >> "[0xff][0xd8][0xff][0xe0][0x0][0x10]JFIF[0x0][0x1][0x1][0x0][0x0]H[0x0]H[......19:36:20.578 [main] DEBUG jclouds.wire - >> "--multipart_boundary--[\r][\n]"
19:36:20.579 [main] DEBUG jclouds.headers - >> POST https://www.googleapis.com/upload/storage/v1/b/***************/o?uploadType=multipart HTTP/1.1
19:36:20.579 [main] DEBUG jclouds.headers - >> Accept: application/json
19:36:20.579 [main] DEBUG jclouds.headers - >> Authorization: Bearer *****************************
19:36:20.579 [main] DEBUG jclouds.headers - >> Content-Type: multipart/form-data; boundary=multipart_boundary
19:36:20.579 [main] DEBUG jclouds.headers - >> Content-Length: 13956
19:36:21.353 [main] DEBUG o.j.h.i.JavaUrlHttpCommandExecutorService - Receiving response 781231910: HTTP/1.1 200 OK
19:36:21.354 [main] DEBUG jclouds.headers - << HTTP/1.1 200 OK
19:36:21.354 [main] DEBUG jclouds.headers - << Alt-Svc: quic=":443"; ma=2592000; v="46,43,39"
19:36:21.354 [main] DEBUG jclouds.headers - << Server: UploadServer
19:36:21.354 [main] DEBUG jclouds.headers - << ETag: CM6L8fDWyOQCEAE=
19:36:21.354 [main] DEBUG jclouds.headers - << X-GUploader-UploadID: AEnB2UqnPaZ60MZFrE-X1greCBYZn5MPpKLFIZlQEwUCaEXvcl1kSxbj9j7IMAqxkkMLzI6n_DZMQGlizqfpMTBWLBJ0omt0_w
19:36:21.354 [main] DEBUG jclouds.headers - << Vary: X-Origin
19:36:21.354 [main] DEBUG jclouds.headers - << Vary: Origin
19:36:21.354 [main] DEBUG jclouds.headers - << Pragma: no-cache
19:36:21.354 [main] DEBUG jclouds.headers - << Date: Wed, 11 Sep 2019 11:36:21 GMT
19:36:21.354 [main] DEBUG jclouds.headers - << Cache-Control: no-cache, no-store, max-age=0, must-revalidate
19:36:21.354 [main] DEBUG jclouds.headers - << Content-Type: application/json; charset=UTF-8
19:36:21.354 [main] DEBUG jclouds.headers - << Content-Length: 784
19:36:21.354 [main] DEBUG jclouds.headers - << Expires: Mon Jan 01 08:00:00 PHT 1990
19:36:21.354 [main] DEBUG jclouds.wire - << "{[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "kind": "storage#object",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "id": "****************/room.jpg/1568201781298638",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "selfLink": "https://www.googleapis.com/storage/v1/b/***************/o/room.jpg",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "name": "room.jpg",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "bucket": "***************",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "generation": "1568201781298638",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "metageneration": "1",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "contentType": "application/unknown",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "timeCreated": "2019-09-11T11:36:21.298Z",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "updated": "2019-09-11T11:36:21.298Z",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "storageClass": "STANDARD",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "timeStorageClassUpdated": "2019-09-11T11:36:21.298Z",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "size": "13607",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "md5Hash": "xSF9hqcotKIm+vvOufxoQg==",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "mediaLink": "https://www.googleapis.com/download/storage/v1/b/***************/o/room.jpg?generation=1568201781298638&alt=media",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "crc32c": "0h4FCA==",[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << " "etag": "CM6L8fDWyOQCEAE="[\n]"
19:36:21.355 [main] DEBUG jclouds.wire - << "}[\n]"