diff --git a/nullboard.html b/nullboard.html
index b3ccedc..258587c 100644
--- a/nullboard.html
+++ b/nullboard.html
@@ -1325,6 +1325,7 @@
             this.databases.push(arguments[i]);
          }
          this.deltas = new Deltas(this.cache());
+         this.intervals = [];
          this.scheduleSync();
          this.syncCacheWithPrimary();
       }
@@ -1367,9 +1368,23 @@
 
       scheduleSync()
       {
-         setInterval(() => { this.syncDeltas(); }, 10 * 1000);
-         setInterval(() => { this.syncCacheWithPrimary(); }, 120 * 1000);
-         setInterval(() => { this.syncReplicasWithCache(); }, 123 * 1000);
+         this.intervals.push(
+            setInterval(() => { this.syncDeltas(); }, 10 * 1000)
+         );
+         this.intervals.push(
+            setInterval(() => { this.syncCacheWithPrimary(); }, 120 * 1000)
+         );
+         this.intervals.push(
+            setInterval(() => { this.syncReplicasWithCache(); }, 123 * 1000)
+         );
+      }
+
+      close()
+      {
+         this.intervals.forEach((i) => {
+            clearInterval(i);
+         });
+         this.intervals = [];
       }
 
       syncDeltas()
@@ -3199,6 +3214,13 @@
 
    function setGlobalNamespace(namespace)
    {
+      try
+      {
+         if (globalStorage && globalStorage.close)
+            globalStorage.close();
+      }
+      catch (e) {}
+
       globalStorage = new MultiDatabase(
          new NamespacedDatabase(namespace, new HTTPCRUD()),
          new NamespacedDatabase(namespace, new Local()),