share local storage wkwebview swift
let uniqueProcessPool = WKProcessPool()
let configA = WKWebViewConfiguration()
configA.processPool = uniqueProcessPool
let webViewA = init(frame: CGRect.zero, configuration: configA)
let configB = WKWebViewConfiguration()
configB.processPool = uniqueProcessPool
let webViewB = init(frame: CGRect.zero, configuration: configB)