Short delay displaying missing GoWebImage.aspx

My GoView used to display instantaneously.
Now, there is a slight delay where the GoView displays “missing GoWebImage.aspx or GoWebImage.axd” for about a second, and then my actual GoView is loaded. This happens in Release mode as well as Debug mode.

Any idea what change could have caused this?


This is with the server and client both on the same machine?

We've seen a case recently where icons for nodes were being pulled from an http: address instead of being a resource in the app. Under really heavy loads, this was starting to be an issue for them.