PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • it is not a bug, the user can go to the settings of there iphone and then choose safari. there is a option to set private brouwsing. default is on so storage works but some disable it. so you should create a message in your app telling theme to enable it.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com