HEAD(url = NULL, config = list(), ..., handle = NULL)
authenticate
),
additional headers (add_headers
), cookies
(
query
,
path
, etc, passed on to modify_url
.
These parameters must be named.handle_pool
based on the scheme, hostname
and port of the url. By default The response to a HEAD request MAY be cacheable in the sense that the information contained in the response MAY be used to update a previously cached entity from that resource. If the new field values indicate that the cached entity differs from the current entity (as would be indicated by a change in Content-Length, Content-MD5, ETag or Last-Modified), then the cache MUST treat the cache entry as stale.
BROWSE
,
DELETE
, GET
HEAD("http://google.com")
HEAD("http://google.com")$headers
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