Template:LSL Constants/HTTP Headers

Headers sent by the simulator in the course of calling llHTTPRequest.

Header	Description	Example data
Connection	Connection options	close
Cache-Control	Maximum response age accepted.	max-age=259200
X-Forwarded-For	Used to show the IP address connected to through proxies.	127.0.0.1
Via	Shows the recipients and protocols used between the User Agent and the server.	1.1 sim10115.agni.lindenlab.com:3128 (squid/2.7.STABLE9)
Content-Length	The size of the entity-body, in decimal number of octets.	17
Pragma	The message should be forwarded to the server, even if it has a cached version of the data.	no-cache
X-SecondLife-Shard	The environment the object is in. "Production" is the main grid and "Testing" is the preview grid	Production
X-SecondLife-Region	The name of the region the object is in, along with the global coordinates of the region's south-west corner	Jin Ho (264448, 233984)
X-SecondLife-Owner-Name	Legacy name of the owner of the object	Zeb Wyler
X-SecondLife-Owner-Key	UUID of the owner of the object	01234567-89ab-cdef-0123-456789abcdef
X-SecondLife-Object-Name	The name of the object containing the script	Object
X-SecondLife-Object-Key	The key of the object containing the script	01234567-89ab-cdef-0123-456789abcdef
X-SecondLife-Local-Velocity	The velocity of the object	0.000000, 0.000000, 0.000000
X-SecondLife-Local-Rotation	The rotation of the object containing the script	0.000000, 0.000000, 0.000000, 1.000000
X-SecondLife-Local-Position	The position of the object within the region	(173.009827, 75.551231, 60.950001)
User-Agent	The user-agent header sent by LSL Scripts. Contains Server version.	Second Life LSL/16.05.24.315768 (http://secondlife.com)
Content-Type	The media type of the entity body.	text/plain; charset=utf-8
Accept-Charset	Acceptable character sets from the server. Q being the quality expected when sending the different character sets.	utf-8;q=1.0, *;q=0.5
Accept	Media types the server will accept.	text/*, application/xhtml+xml, application/atom+xml, application/json, application/xml, application/llsd+xml, application/x-javascript, application/javascript, application/x-www-form-urlencoded, application/rss+xml
Accept-Encoding	Acceptable content encodings for the server.	deflate, gzip
Host	The internet host being requested.	secondlife.com
Tip: Certain server environments (CGI) place headers into variables by capitalizing the entire name, replacing dashes with underscores, and prefixing the name with "HTTP_", e.g. "X-SecondLife-Object-Name" becomes "HTTP_X_SECONDLIFE_OBJECT_NAME". This depends solely on the HTTP server used to process the request and cannot be controlled via LSL. ⚠️ Warning: RFC 2616 § 4.2 defines HTTP header field names as case-insensitive. The capitalization of header field names shown above is not guaranteed; for example, "X-SecondLife-Object-Name" may be received as "X-Secondlife-Object-Name". See BUG-5094 for an instance of ISPs recapitalizing headers. This behavior was also observed when testing in 2026.