If umbracoUseSSL = true is set to force Umbraco to run under SSL then the page preview function stops working. This appears to be because the preview is loading as an insecure http request into the https frame so the browser rejects the request as "mixed" content. The HTTPS redirect package seems to redirect https to http if the page was not specified in the config file. So only pages specified as Https in the config can be previewed.

Is there a solution to this problem?

Thanks

Dan