Missing asp:Login control in Chrome

One of my .NET forms authentication pages which contains an asp:Login control was not displaying in the latest version of Chrome (21.0.1180.60 m).  Other browsers such as IE and FF were coming up fine.  Pulled open the page in question, then launched the Chrome developer tools.  I noticed the stylesheet was blocked because it was insecure, meaning non-SSL while the rest of the site was SSL.  Switched the stylesheet to be SSL and the page came up.  I could have swore in the past, Chrome would first warn you of insecure content, then allow you to load it.  In any case, mystery solved.