Yeah! It's like a weird programing convention. Traditionally, there isn't a trailing slash after the final page in a url (i.e.
www.google.com/), but it technically doesn't matter these days since static websites are barely used anymore.
That said, if a webapp is written well, usually the programmer will write code to handle variations on the url that probably mean the same thing.
For instance on ScribbleHub, you can actually write nearly anything you want after the series id and it will always work
Code:
https://www.scribblehub.com/series/306250/i-escaped-to-another-world-to-run-away-from-my-fiance-i-really-hate-him-why-the-hell-are-we-getting-married-plz-save-me-ahhhh-can-i-kiss-him-instead-marriage-is-too-deep-but-im-okay-with-having-babies-so-shower-me-with-love/