Deprecating web hosting support in Google Drive
Beginning August 31, 2015, web hosting in Google Drive for users and developers will be deprecated. Google Apps customers can continue to use this feature for a period of one year until August 31, 2016, when serving content via googledrive.com/host/doc id will be discontinued.
http://googleappsupdates.blogspot.com.es/2015/08/deprecating-web-hosting-support-in.html?m=1