The URL https://superuser.com/questions/ask is saying go to the 'questions' controller and find me the 'ask' method which will then turn around and render a view back to the user. So in one way you're not actually navigating to a page, you're navigating to a programatic method located on the web server.
White Poop or Clay-Colored Stool. This type of poop can be described in many ways, including pale, clay-colored or even white. This white poop is present when the liver does not release enough bile salts into the stool in your intestines. This may occur due to bile duct blockages, gallstones or liver problems. Clay-colored or pale gray stool is usually a sign of a more serious problem.
Under normal circumstances, bile is made in the liver and stored in the gallbladder. When you eat a meal, bile passes from the gallbladder through the cystic duct and the common bile duct into the small intestine, where it mixes with partially digested food. Gallstones are the most common reason for biliary colic. If a gallstone blocks either of these ducts, the normal flow of bile into the intestine is disrupted. The muscle cells in the bile duct contract vigorously to try to move the stone, causing the pain of biliary colic.