Hi dropbox,
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app permission type: App folder
API version: dropbox API v2
description: HTTP request with "Range" header field not working.
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A HTTP request with "Range" header should works like:
Request:
GET /test_320x180.mp4
Range: bytes=1000-
Response:
206 Partial Content
Content-Type: video/mp4
Content-Length: 64656927
Accept-Ranges: bytes
Content-Range: bytes 1000-64656926/*
But got these:

> POST /2/files/download HTTP/1.1
> Host: content.dropboxapi.com
> User-Agent: curl/7.43.0
> Accept: */*
> Authorization: Bearer h4CFOpR9f5UAAAAAAAAnRbDUUE……
> Dropbox-API-Arg: {"path": "/test.png"}
> Range: bytes=2000-
>
0 0 0 0 0 0 0 0 --:--:-- 0:00:01 --:--:-- 0
< HTTP/1.1 200 OK
< Server: nginx
< Date: Sun, 08 Nov 2015 15:39:07 GMT
< Content-Type: application/octet-stream
< Content-Length: 14659
< Connection: keep-alive
< pragma: no-cache
< cache-control: no-cache
< original-content-length: 14659
< dropbox-api-result: {"name": "test.png", "path_lower": "/test.png", "id": "id:wPJq19T.....", "client_modified": "2015-11-08T09:18:28Z", "server_modified": "2015-11-08T10:18:28Z", "rev": "1f3f632b5f", "size": 14659}
< X-Server-Response-Time: 186
< X-Dropbox-Request-Id: 4079fdd986580631468b829d8d20bebe
< X-Robots-Tag: noindex, nofollow, noimageindex
<
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Can not finish my ****** without "Range"'s help.
Help please, thank you so much!