Add error handling for InvalidError

services/web/app/coffee/Features/Errors/ErrorController.coffee

@@ -25,6 +25,10 @@ module.exports = ErrorController =
 		else if error instanceof Errors.TooManyRequestsError
 			logger.warn {err: error, url: req.url}, "too many requests error"
 			res.sendStatus(429)
+		else if error instanceof Errors.InvalidError
+			logger.warn {err: error, url: req.url}, "invalid error"
+			res.status(400)
+			res.send(error.message)
 		else if error instanceof Errors.InvalidNameError
 			logger.warn {err: error, url: req.url}, "invalid name error"
 			res.status(400)

services/web/app/coffee/Features/Errors/Errors.coffee

@@ -82,6 +82,13 @@ EmailExistsError = (message) ->
 	return error
 EmailExistsError.prototype.__proto__ = Error.prototype
 
+InvalidError = (message) ->
+	error = new Error(message)
+	error.name = "InvalidError"
+	error.__proto__ = InvalidError.prototype
+	return error
+InvalidError.prototype.__proto__ = Error.prototype
+
 module.exports = Errors =
 	NotFoundError: NotFoundError
 	ServiceNotConfiguredError: ServiceNotConfiguredError
@@ -95,3 +102,4 @@ module.exports = Errors =
 	V1ConnectionError: V1ConnectionError
 	UnconfirmedEmailError: UnconfirmedEmailError
 	EmailExistsError: EmailExistsError
+	InvalidError: InvalidError