I have not yet managed to get a static HTML spashup preloader html file to show up before the application is ready to display it's page.
I have googled everything there is to be found on the topic but it is still not working.
We are using IIS 8.5 with Windows Server 2012 R2 (64 bit).
What I have done:
1) "Application Initialization" is enabled under "Server Manager". (I have tried un-installing the "Application Initialization" feature and re-installing it with no luck)
2) "Preloader" is enabled for the site in IIS.
3) I have inserted the following into web.config under system.webServer:
<applicationInitialization remapManagedRequestsTo="preloader.htm" skipManagedModules="true" doAppInitAfterRestart="false">
<clear />
<add initializationPage="/" hostName="test.xxxxxxx.com" />
</applicationInitialization>
("test.xxxxxxx.com" instead of our real site and initializationPage is set to "/" just to see if I can get any reaction).
4) We have this simple asp.net script (test.aspx) that runs for 5-10 sec:
<%
For i = 0 To 500000
response.write(".<br>")
Next
%>
The preloader.htm is just some simple html but it is never shown.
Can anyone see what is missing? Thank you :-)