Custom app schemes & data integrity

[brodycj]

There is discussion in this thread about upcoming cordova-ios@6, switch to WKWebView, and using custom app scheme vs using the file URL scheme as had been supported by cordova-plugin-wkwebview-engine. And there is a question of whether or not to continue supporting cordova-plugin-wkwebview-engine, and update it for cordova-ios@6, to support any apps needing to continue using the file URL scheme.

A major issue is that changing from the file URL scheme to the custom app scheme is loss of access to data stored through web APIs such as local storage, IndexedDB, perhaps even deprecated Web SQL API. Native plugins such as cordova-sqlite-storage would not suffer from this kind of an issue.