Yeah, this is nothing big, all it is showing the " / login " bit for is because the jquery is using it as an ' id ' variable to call the divided webpage within the source code.
The browser sees it as a different page within itself but, it is merely a fluke of the browser itself, revealing the actual selected div as the domain destination. It is absolutely all on the same page.
It is a better practice to isolate divs with class id variables to better conceal them in that type of exposure. It isn't anything to worry about though and is extremely used as common practice in multi-language coding.