Fix Blazor startup and percentage of loading.

Author: cshtml5

OpenSilver.Samples.TelerikUI/OpenSilver.Samples.TelerikUI.Browser/wwwroot/index.html

@@ -33,7 +33,7 @@
         </div>
     </app>
     <div id="cshtml5-root" style="position: relative; width: 100%; height: 100%; overflow-x: hidden; overflow-y: hidden"></div>
-    <script src="_framework/blazor.webassembly.js"></script>
+    <script src="_framework/blazor.webassembly.js" autostart="false"></script>
     <script type="application/javascript" src="libs/opensilver.js"></script>
     <script src="BlazorLoader.js"></script>
 </body>