如何配置IIS 8.5以与Asp.Net UpdatePanel一起使用？

Question

I've created an Asp.Net Web forms project and using an UpdatePanel to prevent page postback. The update panel is working fine in local testing and also working fine in Windows Local IIS but when I deploy on Windows Server 2012 R2 IIS the page posts back and update panel don't work. I've also debug the HTML page and it shows the error

Sys is Undefined

I'm not able to know if it is the problem from server side or inside the project. Below is the configuration on System.Web and System.webServer in web.config.

<system.web>
    <httpHandlers></httpHandlers>
    <httpRuntime targetFramework="4.5" />
    <httpModules>
      <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" />
    </httpModules>
  </system.web>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules>
      <remove name="ApplicationInsightsWebTracking" />
      <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler" />
    </modules>
    <handlers>
      <add name="Ajax" verb="POST,GET" path="ajax/*.ashx" type="Ajax.PageHandlerFactory, Ajax" />
    </handlers>
  </system.webServer>

Answer 1

There was a problem with references of the ScripManager. I added the references from packages that were downloaded and it then worked.