Does not work on Firefox Quantum 69.0b12 either; what comes up is:
Not Found
The requested URL /apps/kl/catalog.html was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache/2.2.23 (Unix) mod_ssl/2.2.23 OpenSSL/1.0.0-fips mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 PHP/5.4.11 Server at www.legacykline.com Port 80