Correct, web servers are configured to display an index page when a page in a directory is not specified. It could be index or default htm, html, php, etc. The order of preference is established by the server admin.

Both urls will display an index page if one is present.

http://www.mysite.com
http://www.mysite.com/cart/

Thanks Eric, Tony, Tassie, & Janys. Everyone on this forum are so helpful and patient!

Eric you are one sick puppy dude! Your avatar cracks me up.

I am a sensitive kittie cat, not a puppy.

All that kittie needs is a scar on his face. In the immortal words of Al Pacino - "Say hello to my little friend!"