Hi Radosław You need to use the X-HTTP_AUTHORIZATION environment variable and need to reconfigure your webware adapter as on the wiki:
<Location /WK> WKServer localhost 8086 SetHandler webkit-handler RewriteEngine On RewriteRule /WK(.*) - [E=X-HTTP_AUTHORIZATION:%{HTTP:Authorization},PT] </Location> -- Michel Thadeu Sabchuk Curitiba - Brasil