From 8efa97acccaabc80d5ba8319f59d02eff5ba6925 Mon Sep 17 00:00:00 2001
From: raptor <raptor.zh@gmail.com>
Date: Sat, 21 Feb 2015 23:03:05 +0800
Subject: [PATCH] fix get_protocol bug.

 $_SERVER['HTTPS'] == '' on nginx http
---
 lib/pico.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pico.php b/lib/pico.php
index 07a1481..d3150d1 100644
--- a/lib/pico.php
+++ b/lib/pico.php
@@ -309,7 +309,7 @@ class Pico {
 	protected function get_protocol()
 	{
 		$protocol = 'http';
-		if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off'){
+		if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' && $_SERVER['HTTPS'] != ''){
 			$protocol = 'https';
 		}
 		return $protocol;