fix handling of / as cgi prefix

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/main.c b/main.c
index 38d023f..e89a99a 100644
--- a/main.c
+++ b/main.c
@@ -201,7 +201,7 @@ static void fixup_prefix(char *str)
 
 	len = strlen(str) - 1;
 
-	while (len > 0 && str[len] == '/')
+	while (len >= 0 && str[len] == '/')
 		len--;
 
 	str[len + 1] = 0;