We are stuck.
Upgrade today and we discover that
Intel XDK cache not supported...and ok we will find a solution to store local variables...
Intel XDK Device is no longer supported. We based our app on AddVirtualPage to intercept Back button. We don't have the time to test another solution. What I have to do now?
I recommend switching any plugin that you are using that are intelxdk plugins to Cordova* plugins. IntelXDK plugins are no longer being supported. Cordova plugins are widely supported and provides a variety of plugins.
The intel.xdk.cache plugin has been depricated. You can still use it if you want to, but no further work will be put into maintaining it. It is also available via git https://github.com/01org/cordova-plugin-intel-xdk-cache.git
There is nothing stopping you from continuing to use the intel.xdk.cache plugin (or any other plugin).
It has been marked for deprecation. That translates to this - it will eventually be removed from the plugin list. If you still wish to use it you can. The plugin that you are using is actually this plugin - https://github.com/01org/cordova-plugin-intel-xdk-cache.git. Even after it is removed from the XDK, you can still continue to use it by including it as a 3rd party plugin.