Try to fix mysterious test failures on Travis

diff --git a/commands/server.go b/commands/server.go
index 98ea60f4e5909425b82ba87d3f8bb213b902b3e2..6ce679c6e58ef53c11b6528275d3d0d975a0ae31 100644 (file)
--- a/commands/server.go
+++ b/commands/server.go
@@ -146,7 +146,7 @@ func fixUrl(s string) (string, error) {
        if !strings.HasPrefix(s, "http://") && !strings.HasPrefix(s, "https://") {
                s = "http://" + s
        }
-       if !strings.HasSuffix(s, "/") {
+       if len(s) > 0 && !strings.HasSuffix(s, "/") {
                s = s + "/"
        }
        u, err := url.Parse(s)