diff --git a/src/static/js/changesettracker.js b/src/static/js/changesettracker.js
index d0c91e3d3..92d550928 100644
--- a/src/static/js/changesettracker.js
+++ b/src/static/js/changesettracker.js
@@ -57,6 +57,7 @@ function makeChangesetTracker(scheduler, apool, aceCallbacksProvider)
         {
           changeCallback();
         }
+        catch(pseudoError) {}
         finally
         {
           changeCallbackTimeout = null;