diff --git a/data/auth.sqlite b/data/auth.sqlite
index c135a48..6c03a00 100644
Binary files a/data/auth.sqlite and b/data/auth.sqlite differ
diff --git a/src/page.html b/src/page.html
index 15bc3cb..c7db741 100644
--- a/src/page.html
+++ b/src/page.html
@@ -877,12 +877,13 @@ function updatePhotoPos(fuuid){
 }
 
 function navigatePhoto(dir){
+    var userId=localStorage.getItem("tree_user")||"demo";
     var idx=_photoList.indexOf(_photoUuid);
     if(dir=="prev"&&idx>0)idx--;else if(dir=="next"&&idx<_photoList.length-1)idx++;
     if(idx>=0&&idx<_photoList.length){
         _photoUuid=_photoList[idx];
         var img=document.getElementById("mb-preview-img");
-        if(img)img.src="/api/v2/files/"+_photoUuid+"/stream?_="+Date.now();
+        if(img)img.src="/api/v2/files/"+userId+"/"+_photoUuid+"/stream?_="+Date.now();
         updatePhotoPos(_photoUuid);
     }
 }