WKWebView: How to local storage enable in iOS8

Question

I'm trying to local storage enable. But in iOS8, I can't find how to do it.

let configuration = WKWebViewConfiguration()

if #available(iOS 9.0, *) {
    configuration.websiteDataStore = WKWebsiteDataStore.defaultDataStore()
} else {
    //??
}

Answer 1

In iOS 8 it seems that local storage is enabled by default.