diff --git a/uitls/bingPage.ts b/uitls/bingPage.ts
index 0f16c6d..f836779 100644
--- a/uitls/bingPage.ts
+++ b/uitls/bingPage.ts
@@ -25,6 +25,7 @@ export class Page {
 
   static handleRefs = (ansFrame: HTMLElement, setFontWeight=true, returnJSON=false) => {
     // ansFrame's css selector is cib-message[type="text"]
+    if (ansFrame === null) return;
     const refsBlock = ansFrame
       .shadowRoot
       .querySelector("cib-message-attributions");
@@ -37,6 +38,7 @@ export class Page {
         }
         if (returnJSON) {
           return {
+            index: linkElm.getAttribute("tabindex"),
             title: linkElm.getAttribute("title"),
             href: linkElm.getAttribute("href")
           };
diff --git a/uitls/visitor.ts b/uitls/visitor.ts
index 97591ce..bdd1116 100644
--- a/uitls/visitor.ts
+++ b/uitls/visitor.ts
@@ -50,7 +50,6 @@ export class DownloadVisitor {
 
   static forJSON = () => {
     const result = Page.getQAsJSON();
-    console.log(result);
     const dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(result));
     const downloadAnchorNode = document.createElement('a');
     downloadAnchorNode.setAttribute("href",     dataStr);