diff --git a/src/main/resources/q-apps/q-apps.js b/src/main/resources/q-apps/q-apps.js
index 25656370..183998bd 100644
--- a/src/main/resources/q-apps/q-apps.js
+++ b/src/main/resources/q-apps/q-apps.js
@@ -288,7 +288,7 @@ window.addEventListener("message", async (event) => {
 
     let url;
     let data = event.data;
-
+    let identifier;
     switch (data.action) {
         case "GET_ACCOUNT_DATA":
             return httpGetAsyncWithEvent(event, "/addresses/" + data.address);
@@ -419,7 +419,7 @@ window.addEventListener("message", async (event) => {
             return httpGetAsyncWithEvent(event, url);
 
         case "GET_QDN_RESOURCE_PROPERTIES":
-            let identifier = (data.identifier != null) ? data.identifier : "default";
+            identifier = (data.identifier != null) ? data.identifier : "default";
             url = "/arbitrary/resource/properties/" + data.service + "/" + data.name + "/" + identifier;
             return httpGetAsyncWithEvent(event, url);
 
@@ -456,7 +456,7 @@ window.addEventListener("message", async (event) => {
             return httpGetAsyncWithEvent(event, url);
 
         case "GET_AT":
-            url = "/at" + data.atAddress;
+            url = "/at/" + data.atAddress;
             return httpGetAsyncWithEvent(event, url);
 
         case "GET_AT_DATA":
@@ -473,7 +473,7 @@ window.addEventListener("message", async (event) => {
 
         case "FETCH_BLOCK":
             if (data.signature != null) {
-                url = "/blocks/" + data.signature;
+                url = "/blocks/signature/" + data.signature;
             } else if (data.height != null) {
                 url = "/blocks/byheight/" + data.height;
             }