Don’t get fancy with your HTTPS site migration. Keep it simple and consistent, and use 301 redirects, says Google.
Please visit Search Engine Land for the full article.
Original source: http://feeds.searchengineland.com/~r/searchengineland/~3/RQE_JseGptg/when-migrating-from-http-to-https-google-says-to-use-301-redirects-304200