diff --git a/module/webapp/model.php b/module/webapp/model.php
index d6328e7c65..b162a21129 100644
--- a/module/webapp/model.php
+++ b/module/webapp/model.php
@@ -260,7 +260,7 @@ class webappModel extends model
         if(isset($data->url))
         {
             $data->url = trim($data->url);
-            if(strpos($data->url, 'http://') !== 0) $data->url = 'http://' . $data->url;
+            if(!preg_match('/^https?:\/\//', $data->url)) $data->url = 'http://' . $data->url;
         }
 
         if($data->size == 'custom') $data->size = (float)$this->post->customWidth . 'x' . (float)$this->post->customHeight;
@@ -301,7 +301,7 @@ class webappModel extends model
             ->remove('files,customWidth,customHeight')->get();
 
         $data->url = trim($data->url);
-        if(strpos($data->url, 'http://') !== 0) $data->url = 'http://' . $data->url;
+        if(!preg_match('/^https?:\/\//', $data->url)) $data->url = 'http://' . $data->url;
         if($data->size == 'custom') $data->size = (float)$this->post->customWidth . 'x' . (float)$this->post->customHeight;
 
         $this->dao->insert(TABLE_WEBAPP)->data($data)