Root and intermediate certificates installation in Azure Web App?
This is not expected behavior. According to this blog post intermediate and chain certificates should be automatically imported and configured, assuming that your cert was uploaded after a certain date:http://azure.microsoft.com/blog/2015/06/01/intermediate-tls-certificates-for-azure-app-service-web-apps/
(If it's still not working, it may be indicative of an underlying platform problem, in which case the best approach is to post on the official Azure App Service MSDN forum.)