For the case of semi-static apps, the title must also specify for how long the cached snapshot will be valid in seconds.
The following example will notify the player to get a snapshot and consider it valid for the next hour:
document.title = '{"ready_for_cache": true, "valid_for": 3600}'
The player will automatically take care of starting the app when the cached snapshot is no longer valid.
Notes
- The cache is persistent and it is stored on the SD card.
- If you make any changes to your app on the Web portal, any cached snapshots will be deleted, and new ones will be created.
- The app will have about 30 seconds after it has been started to set the title to notify the player to get a snapshot. If the title is not changed, the app will be rendered normally using the Web rendering engine (WebKit or Chromium).
- When static app snapshots are created, a blinking message “Preparing content” will appear on the bottom right corner of the screen.
Static Apps