Fix ascii characters

Pages/Index.cshtml

@@ -40,7 +40,7 @@ else
         var jsfile = jspath + "/" + Model.Encode(file);
         
         <script>queue.push('@Html.Raw(jsfile)')</script>
-        <a class="action" href="@Html.Raw(Model.Encode(Model.fullpath+"/"+file))" download>[DL]</a>
+        <a class="action" href="@Html.Raw(Model.Encode(Model.fullpath+"/"+file.Replace("?", "%3F")))" download>[DL]</a>
         <a href="#" onclick="playSong('@Html.Raw(jsfile)')"> @file</a>
         <br/>
     }