update lazy loading

dashboard-ui/components/ironcardlist/ironcardlist.js

@@ -0,0 +1,32 @@
+define(['iron-list', 'lazyload-image'], function () {
+
+    function getTemplate(scrollTarget) {
+
+        var maxPhysical = 80;
+
+        // is="lazyload-image" 
+
+        return new Promise(function (resolve, reject) {
+
+            var xhr = new XMLHttpRequest();
+            xhr.open('GET', 'components/ironcardlist/ironcardlist.template.html', true);
+
+            xhr.onload = function (e) {
+
+                var html = this.response;
+
+                html = html.replace('${maxphysical}', maxPhysical);
+                html = html.replace('${scrolltarget}', scrollTarget);
+
+                resolve(html);
+            }
+
+            xhr.send();
+        });
+    }
+
+    return {
+        getTemplate: getTemplate
+    };
+
+});