Web
ASP.NET MVC
When we pushed out Telerik TV, we ran into an interesting style issue. We were using output caching on our index page to save the server a little work. However, sometimes when a user navigated to tv.telerik.com/home it would look like this:
This problem would only manifest itself on the production server, and shockingly there were no errors! By looking at the source of the page we quickly realized that neither the StyleSheetRegistrar, nor the ScriptRegistrar were outputting anything at all. This made it clear that the Render method on the StyleSheetRegistrar / ScriptRegistrar was not firing, or something was causing them...