I don't see any effective difference between putting the data in a URL and putting the data in a local HTML file and opening the file in a browser. (And if you're going to put the data in a URL, you should probably be using a data: URL.)
Even if this were possible (which, even if tinyurl supported it, would break most browsers) you would be effectively hosting your content on tinyurl.com. Again, this is no different from hosting the file on any of a zillion public data hosting services.