Specific web pages from a domain were responding with empty content. Appears to be caused via exceptions being thrown on ASP.Net worker process startup around asp.net theming and the System.Drawing namespace.
Exceptions which were caught were:
- The type initializer for 'System.Drawing.ToolboxBitmapAttribute' threw an exception.
- GDI+ is not properly initialized (internal GDI+ error).
Vijayshinva Karnure from Microsoft India wrote about the issue in his blog.