File wku.conf of Package apache2-debugging-modules

<IfModule mod_backtrace.c>
  EnableExceptionHook On
  # mod_backtrace provide %B, see the documentation
  ErrorLogFormat "[%t] [%l] [pid\ %P] [client\ %a] %M backtrace: [%{//}B]"
  <Location /backtrace>
    SetHandler backtrace-handler
    Require local
  </Location>
</IfModule>

<IfModule mod_crash.c>
  # mod_crash provides test crash of one of the child, just visit http://localhost/crash
  <Location /crash>
    SetHandler crash-handler
    Require local
  </Location>
</IfModule>

<IfModule mod_whatkilledus.c>
  EnableExceptionHook On
  WKUObscureInRequest hdr:Authorization hdr:Cookie hdr:Proxy-Authorization user password query unparsed-line
  # * httpd service is using PrivateTmp, so when you write to /var/tmp/wku_log, then
  #   do not start apache with systemctl or find the file under private tmp
  # * this file must be writeable by user:group under which apache servers running on
  #   (wwwrun:www for SUSE at time of writing) 
  WKULogfile /var/tmp/wku_log
</IfModule>