Name
Accept-Ranges
Synopsis
The Accept-Ranges header differs from the other Accept headers—it is a response header used by servers to tell clients whether they accept requests for ranges of a resource. The value of this header tells what type of ranges, if any, the server accepts for a given resource.
A client can attempt to make a range request on a resource without having received this header. If the server does not support range requests for that resource, it can respond with an appropriate status code[2] and the Accept-Ranges value “none”. Servers might want to send the “none” value for normal requests to discourage clients from making range requests in the future.
Chapter 17 contains a complete description of the Accept-Ranges header.
Type
Response header
Basic Syntax
Accept-Ranges: 1# range-unit | none
Examples
Accept-Ranges: none
Accept-Ranges: bytes
[2] For example, status code 416 (see Section 3.4.4).
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