[
  {
    "origin": ["*"],
    "responseHeader": ["Content-Type", "Access-Control-Allow-Origin"],
    "method": ["PUT"],
    "maxAgeSeconds": 3600
  }
]

:authority:storage.googleapis.com
:method:OPTIONS
:path:/bucket-name/rvDThZx1R6Od8zqHx7_rqQ.png?GoogleAccessId=uploder@appspot.gserviceaccount.com&Expires=1508253581&Signature=uYA0OR4IyUAV8u5ur89dm0NJYMei8BEu2TKP4pLqHvwl8kR0DTrPJ3xdJxxJRfs3WW7bK9gdITU%2Bttd%2BNRiyCxDiZzNPKT5WeRkAj17AJnLIP4JbRdBp9gR5f5wq1c4aPfNm%2FpZyNfBA%2BwJRKysECUgYBYehDo5WvyQhpHG9A%3D%3D
:scheme:https
accept:*/*
accept-encoding:gzip, deflate, br
accept-language:en-US,en;q=0.8
access-control-request-headers:authorization,content-type,media-type,x-goog-meta-media-type,x-goog-meta-uid
access-control-request-method:PUT
origin:https://example.appspot.com
referer:https://example.appspot.com/
user-agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36
x-chrome-uma-enabled:1
x-client-data:CIa2yQEIprbJAQjBtskBCLSZygEI+pzKAQipncoBCNKdygEI/6LKAQino8oB

alt-svc:quic=":443"; ma=2592000; v="39,38,37,35"
cache-control:private, max-age=0
content-length:0
content-type:text/html; charset=UTF-8
date:Mon, 16 Oct 2017 22:39:41 GMT
expires:Mon, 16 Oct 2017 22:39:41 GMT
server:UploadServer
status:200
vary:Origin
x-guploader-uploadid:AEnB2UpMXELd-l0wkyTd6jjS9LmX0IcJ9VjcXLfQfGDLY9jbVXkp-pwtXFbyw0_zfrqcwLFvEgDgdbPB9xdcbnFVpD2r94zd9A