diff --git a/source/net/yacy/http/YaCyDefaultServlet.java b/source/net/yacy/http/YaCyDefaultServlet.java
index 24a9415e7..acdc359e2 100644
--- a/source/net/yacy/http/YaCyDefaultServlet.java
+++ b/source/net/yacy/http/YaCyDefaultServlet.java
@@ -124,7 +124,7 @@ import org.eclipse.jetty.util.resource.ResourceFactory;
  */
 public class YaCyDefaultServlet extends HttpServlet implements ResourceFactory {
 
-    private static final long serialVersionUID = 4930458713846881193L;
+    private static final long serialVersionUID = 4900000000000001110L;
     private ServletContext _servletContext;
     private boolean _acceptRanges = true;
     private boolean _dirAllowed = true;
@@ -985,6 +985,7 @@ public class YaCyDefaultServlet extends HttpServlet implements ResourceFactory {
         OutputStream out = response.getOutputStream();
 
 
+        // remove virtual host "currentyacypeer"
         int off = 0; // starting offset
         int x = buffer.indexOf("/currentyacypeer/".getBytes(), off);
         while (x >= 0) {
@@ -995,6 +996,7 @@ public class YaCyDefaultServlet extends HttpServlet implements ResourceFactory {
             x = buffer.indexOf("/currentyacypeer/".getBytes(), off);
         }
 
+        // check and handle SSI (ServerSideIncludes)
         off = 0;
         int p = buffer.indexOf("<!--#".getBytes(), off);
         int q;
@@ -1011,6 +1013,7 @@ public class YaCyDefaultServlet extends HttpServlet implements ResourceFactory {
         out.flush();
     }
 	
+    // parse SSI line and include resource
     private void parseSSI(final net.yacy.cora.util.ByteBuffer in, final int off, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
         if (in.startsWith("<!--#include virtual=\"".getBytes(), off)) {
             final int q = in.indexOf("\"".getBytes(), off + 22);
diff --git a/source/net/yacy/http/YaCySecurityHandler.java b/source/net/yacy/http/YaCySecurityHandler.java
index 5bb0acbd8..10004b54d 100644
--- a/source/net/yacy/http/YaCySecurityHandler.java
+++ b/source/net/yacy/http/YaCySecurityHandler.java
@@ -26,7 +26,7 @@ package net.yacy.http;
 
 import java.io.IOException;
 import java.net.MalformedURLException;
-import net.yacy.cora.document.id.DigestURL;
+import net.yacy.cora.document.id.MultiProtocolURL;
 
 import net.yacy.cora.protocol.Domains;
 import net.yacy.search.Switchboard;
@@ -71,7 +71,7 @@ public class YaCySecurityHandler extends SecurityHandler {
 
         String refererHost;
         try {
-            refererHost = new DigestURL(request.getHeader("Referer")).getHost();
+            refererHost = new MultiProtocolURL(request.getHeader("Referer")).getHost();
         } catch (MalformedURLException e) {
             refererHost = null;
         }