1 files changed, 14 insertions, 1 deletions
diff --git a/inc/HTTPClient.php b/inc/HTTPClient.php
index 4352bcb97..cd4c7c4c5 100644
--- a/inc/HTTPClient.php
+++ b/inc/HTTPClient.php
@@ -35,6 +35,19 @@ class DokuHTTPClient extends HTTPClient {
         $this->proxy_pass   = conf_decodeString($conf['proxy']['pass']);
         $this->proxy_ssl    = $conf['proxy']['ssl'];
         $this->proxy_except = $conf['proxy']['except'];
+
+        // allow enabling debugging via URL parameter (if debugging allowed)
+        if($conf['allowdebug']) {
+            if(
+                isset($_REQUEST['httpdebug']) ||
+                (
+                    isset($_SERVER['HTTP_REFERER']) &&
+                    strpos($_SERVER['HTTP_REFERER'], 'httpdebug') !== false
+                )
+            ) {
+                $this->debug = true;
+            }
+        }
     }
 
 
@@ -795,7 +808,7 @@ class HTTPClient {
     function _buildHeaders($headers){
         $string = '';
         foreach($headers as $key => $value){
-            if(empty($value)) continue;
+            if($value === '') continue;
             $string .= $key.': '.$value.HTTP_NL;
         }
         return $string;