diff --git a/src/viewer.js b/src/viewer.js
index da19a0d4..8e2eeaa1 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -990,6 +990,12 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
             for (var i = 0; i < this.world.getItemCount(); i++) {
                 this.world.getItemAt(i).setAjaxHeaders(null, propagate);
             }
+
+            if (this.referenceStrip && this.referenceStrip.miniViewers) {
+                for (var key in this.referenceStrip.miniViewers) {
+                    this.referenceStrip.miniViewers[key].setAjaxHeaders(this.ajaxHeaders, propagate);
+                }
+            }
         }
     },