<s>
Variant	B-Protocol
objects	I-Protocol
in	O
the	O
context	O
of	O
HTTP	B-Protocol
are	O
objects	B-Protocol
served	O
by	O
an	O
Origin	B-Application
Content	I-Application
Server	I-Application
in	O
a	O
type	O
of	O
transmitted	O
data	O
variation	O
(	O
i.e.	O
</s>
<s>
uncompressed	O
,	O
compressed	B-Protocol
,	O
different	O
languages	O
,	O
etc	O
.	O
</s>
<s>
HTTP/1.1	B-Protocol
(	O
1997	O
–	O
1999	O
)	O
introduces	O
Content/Accept	O
headers	B-Protocol
.	O
</s>
<s>
These	O
are	O
used	O
in	O
HTTP	B-Protocol
requests	I-Protocol
and	O
responses	O
to	O
state	O
which	O
variant	O
the	O
data	O
is	O
presented	O
in	O
.	O
</s>
