Re: HEAD requests

On 10 September 2013 16:15, Steve Speicher <sspeiche@gmail.com> wrote:

> Hi Melvin,
>
>
>
> On Tue, Sep 10, 2013 at 9:34 AM, Melvin Carvalho <melvincarvalho@gmail.com
> > wrote:
>
>> Is it a requirement of LDP servers to support HEAD requests as well as
>> GET.  Is it implied that since you can do a GET, you will be able to do a
>> HEAD?
>>
>
> Yes, that is the case.  It is not implied really, it is explicitly stated
> in the spec that you need to support HEAD.  The motivation (recalling WG
> discussions) was that a number of scenarios were seen as valuable to be
> able to do various tests on the URL and also receive additional data (such
> as paging and type headers), instead of needing to fetch the entire
> resource (perhaps a container and all its members).  Also the effort to
> support HEAD in addition to GET is relatively small (just omit the entity
> body in the response).
>

Just looking at the spec, the last call and the current version seem to
have missing sections in the text:

[[
Note that certain LDP mechanisms, such as paging, rely on HTTP headers, and
HTTP generally requires that HEAD responses include the same headers as GET
responses. Thus, implementers should also carefully read  and .
]]

Just a FYI: I'm sure this is already a work being worked on ...


>
> Hope that helps,
> - Steve Speicher
>
>