Sharepoint 2010 - Not able to access Sharepoint 2010 Public facing site on mobile browsers

Question

Hi All,
Earlier, I posted a similar question in the forum , but did not get appropriate response . Posting it again with some more information .
We are not able to access Sharepoint public facing site on Mobile browsers like chrome, IE, Safari (However the site is working fine on Firefox mobile browser and on PC/Laptops as well .)
Following is the error we are getting :
 "Cannot set custom attribute on mobile controls in this page. Custom attributes specified are Access Key=0."
I checked in the event logs , following was the exception :
Exception captured in Exception HttpModule: System.Web.HttpException: Server cannot append header after HTTP headers have been sent.
   at System.Web.HttpResponse.set_RedirectLocation(String value)
   at Microsoft.SharePoint.Utilities.SPMobileUtility.Redirect(String url, SPRedirectFlags flags, HttpContext context, String queryStrings)
   at Microsoft.SharePoint.ApplicationRuntime.SPRequestModule.HandleMobilePageRequest(HttpContext context)
   at Microsoft.SharePoint.ApplicationRuntime.SPRequestModule.PostResolveRequestCacheHandler(Object oSender, EventArgs ea)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Also, there was a microsoft OS security  patching on our farm servers post which the error starts coming . Following were the patches that were installed
1. MS14-005          
KB2916036          Security Update for Windows Server 2008 R2 x64
Edition (KB2916036)
MS14-009          
KB2898857          Security Update for Microsoft .NET Framework 3.5.1
2. on Windows 7 and Windows Server 2008 R2 SP1 for x64-based Systems
(KB2898857)
3. MS14-009          
KB2901112          Security Update for Microsoft .NET Framework 3.5.1
on Windows 7 and Windows Server 2008 R2 SP1 for x64-based Systems
(KB2901112)
4. MS14-009          
KB2911501          Security Update for Microsoft .NET Framework 3.5.1
on Windows 7 and Windows Server 2008 R2 SP1 for x64-based Systems
(KB2911501)
5. MS14-011          
KB2909210          Security Update for Windows Server 2008 R2 x64
Edition (KB2909210)
6. MS14-012          
KB2925418          Cumulative Security Update for Internet Explorer 8
for Windows Server 2008 R2 x64 Edition (KB2925418)
7. MS14-015          
KB2930275          Security Update for Windows Server 2008 R2 x64
Edition (KB2930275)
8. MS14-016          
KB2923392          Security Update for Windows Server 2008 R2 x64
Edition (KB2923392)
Has anyone of you ever faced similar(site not opening on mobile browsers) issue after installing these patches on farm servers .
Any help would be much appreciated .
Thanks
Saquib Khan

Answer 1

We have found below error related in ULS as well as event viewer both :
Exception captured in Exception HttpModule: System.Web.HttpException: Server cannot append header after HTTP headers have been sent.   
 at System.Web.HttpResponse.set_RedirectLocation(String value)   
 at Microsoft.SharePoint.Utilities.SPMobileUtility.Redirect(String url, SPRedirectFlags flags, HttpContext context, String
queryStrings)   
 at Microsoft.SharePoint.ApplicationRuntime.SPRequestModule.HandleMobilePageRequest(HttpContext context)   
 at Microsoft.SharePoint.ApplicationRuntime.SPRequestModule.PostResolveRequestCacheHandler(Object oSender, EventArgs ea)   
 at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()   
 at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Saquib Khan