Name
X-Serial-Number
Synopsis
The X-Serial-Number header is an extension header. It was used by some older HTTP applications to insert the serial number of the licensed software in the HTTP message.
Its use has pretty much died out, but it is listed here as an example of the X headers that are out there.
Type
Extension general header
Basic Syntax
X-Serial-Number: serialno
Example
X-Serial-Number: 010014056
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