2197637 - Authentication handler return "path token too long" error

After active the authentication sub handler with parameter icm/HTTP/auth_<XX> the ICM or Web Dispatcher does not start raising the following error in the developer trace (dev_webdisp or dev_icm).

Adding HttpAuthHandler: PREFIX=<prefix>, PERMFILE=<PERMFILE>
*** ERROR => path token too long '<URL PATH>' (max = 127) in '<PERMFILE>' line <LINE>.
*** ERROR => FATAL: HttpAuthHandlerInit: Syntax error in perm file <PERMFILE>. See SAP note 1916794.
*** ERROR => HttpISubHandlerAdd: init_func of HttpAuthHandler failed (701)
*** ERROR => HttpParseAndAddSubHandler: HttpSubHandlerAdd failed for PREFIX=<PREFIX>, PERMFILE=<PERMFILE>(rc=0)
*** ERROR => HttpPlugInInit: initialization of authentication subhandler failed -> cannot continue
*** ERROR => IcmAddServiceInfo: PlugInInit failed (rc=701
*** ERROR => IcmAddService: IcmAddServiceInfo failed (rc=701)

• Internet Communication Manager (ICM)
• Web Dispatcher

AUTHFILE  FILTER PREFIX P D WDP sapwebdisp icman auth , KBA , BC-CST-WDP , Web Dispatcher , BC-CST-IC , Internet Communication Manager , Problem