diff --git a/libs/kns/http-file.c b/libs/kns/http-file.c
index 66a12d141..ec199bf0d 100644
--- a/libs/kns/http-file.c
+++ b/libs/kns/http-file.c
@@ -1432,7 +1432,8 @@ static rc_t KNSManagerVMakeHttpFileIntUnstableImpl( const KNSManager *self,
                                     rc = RC ( rcNS, rcFile, rcOpening, rcFile, rcNotFound );
                                     break;
                                 default:
-                                    rc = RC ( rcNS, rcFile, rcValidating, rcNoObj, rcEmpty );
+                                    rc = RC ( rcNS, rcFile, rcOpening, rcFile,
+                                        rcUnexpected );
                                 }
 
                                 if ( rc == 0 )
diff --git a/libs/vfs/resolver.c b/libs/vfs/resolver.c
index 3be7014fc..9525b6192 100644
--- a/libs/vfs/resolver.c
+++ b/libs/vfs/resolver.c
@@ -1149,6 +1149,15 @@ rc_t VPathCheckFromNamesCGI ( const VPath * path,
                         rcMessage, rcCorrupt);
             }
             else {
+              CONST_STRING(&req, "?debu");
+              if (StringEqual(&name, &req)) {
+                String e;
+                CONST_STRING(&e, "g=not-found");
+                if (!StringEqual(&val, &e))
+                    return RC(rcVFS, rcResolver, rcResolving,
+                        rcMessage, rcCorrupt);
+              }
+              else {
                 CONST_STRING(&req, "?pId=");
                 if (!StringEqual(&name, &req))
                     return RC(rcVFS, rcResolver, rcResolving,
@@ -1167,6 +1176,8 @@ rc_t VPathCheckFromNamesCGI ( const VPath * path,
                         return RC(rcVFS, rcResolver, rcResolving,
                             rcMessage, rcCorrupt);
                 }
+            
+              }
             }
         }
     }