4447f991_P_Guide___HTTP_General_Headers__HTTP_Cache_Control_Directives_HTTP_Message_Type
[Cache-Control Directive] no-transform [Description] Some caches will, by default, change the form in which certain cached entries are stored, to save space or improve performance. In cases where this might cause problems, the client or server can use this directive to request that this transformation not be performed. [HTTP Message Type] 
Request or Response
R e q u e s t o r R e s p o n s e
R e s p o n s e
R e q u e s t
The TCP/IP Guide - HTTP General Headers
HTTP Message Type