Update grid cache defensively

mistio · Sep 7, 2018 · 3d5faa6 · 3d5faa6
1 parent 92c95ae
commit 3d5faa6
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/mist-list.html b/mist-list.html
@@ -1093,8 +1093,10 @@ <h2>Download list data in CSV</h2>
             console.debug('eventReceived', item, this.applyFilter(item.detail));
             if (this.applyFilter(item.detail))
                 this.async(function () {
-                    this.$.grid.unshift('_cache.0', item.detail);
-                    this.$.grid.fire('iron-resize');
+                    if (this.$.grid && this.$.grid.get('_cache.0') != undefined) {
+                        this.$.grid.unshift('_cache.0', item.detail);
+                        this.$.grid.fire('iron-resize');
+                    }
                 });
         },