URLRequestHeader

A URLRequestHeader object encapsulates a single HTTP request header and consists of a name/value pair. URLRequestHeader objects are used in the requestHeaders property of the URLRequest class.

The following request headers cannot be used: Accept-Ranges, Age, Allow, Allowed, Connection, Content-Length, Content-Location, Content-Range, ETag, Host, Last-Modified, Location, Max-Forwards, Proxy-Authenticate, Proxy-Authorization, Public, Range, Retry-After, Server, TE, Trailer, Transfer-Encoding, Upgrade, URI, Vary, Via, Warning, WWW-Authenticate, x-flash-version.

The following request headers not mentioned in the overview also cannot be used:

Referer, Get, Post, Put, Delete, Options, and Trace.