Detail behavior of putting slash after service name in URL

[waxlamp]

A service named foobar that takes no arguments is supposed to invoked with a URL like this:

http://example.com/foobar

but in general terms that URL looks, to most eyes, the same as

http://example.com/foobar/

However, the latter URL actually says something along the lines of "invoke the foobar service, and pass "" as the first and only argument", which will, in the general case, cause an exception to be raised (if the run() function for foobar is not designed to accept a varargs positional argument, etc.).

This is not a bug but could easily cause confusion for new Tangelo users. We should notate this specific case in the documentation on services to make clear that the slash in this case actually changes the semantics of the URL

[jeffbaumes]

+1. I'd ensure the documentation contains the text of the error that arises in this case. Then at least there's a chance that if someone googles the error message they will find the answer.

[waxlamp]

Good idea.