shell> curl -X DELETE --header 'If-Match: "_VReqj-y--_"' --dump - http://localhost:8529/_api/document/products/9849 HTTP/1.1 412 Precondition Failed x-content-type-options: nosniff content-type: application/json; charset=utf-8 etag: "_VReqj-y---" { "error" : true, "code" : 412, "errorNum" : 1200, "errorMessage" : "precondition failed", "_id" : "products/9849", "_key" : "9849", "_rev" : "_VReqj-y---" }