If a map is created with spaces in its name, it fails without a message

[jlap]

There should be some validation occuring, with an error message.

[jlap]

The error is returned by the server, the popup is the only thing missing.

[dmorissette]

I came across this one as well. The current situation makes you think that the app is broken, so it would be important to report the error to the user.