diff -ru sticky-notes.orig/classes/class_core.php sticky-notes/classes/class_core.php
--- sticky-notes.orig/classes/class_core.php	2012-10-12 21:58:07.510498928 -0100
+++ sticky-notes/classes/class_core.php	2012-10-12 21:58:59.946486810 -0100
@@ -147,7 +147,18 @@
     function base_uri()
     {
         $protocol = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https' : 'http';
-        $uri = $protocol . '://' . $_SERVER['HTTP_HOST'] . $this->path();
+        
+        if (isset($_SERVER['HTTP_X_FORWARDED_HOST'])) {
+            $hostname = $_SERVER['HTTP_X_FORWARDED_HOST'];
+        }
+        elseif (isset($_SERVER['HTTP_HOST'])) {
+            $hostname = $_SERVER['HTTP_HOST'];
+        }
+        else {
+            $hostname = "unknown_host";
+        }
+
+        $uri = $protocol . '://' . $hostname . $this->path();
         
         return $uri;
     }
@@ -220,4 +231,4 @@
     }    
 }
 
-?>
\ No newline at end of file
+?>