ios - 共享 NSHTTPCookieStorage 会将持久性 cookie 同步到 WKWebsiteDataStore defaultDataStore httpCookieStore？

Question

我发现了一个有趣的事实，shared会将持久性cookie( )NSHTTPCookieStorage同步到，谁能告诉我这是一个特性还是一种不可靠的行为？没有找到这方面的文档...isSessionOnly=falseWKWebsiteDataStore.defaultDataStore.httpCookieStore

在 iOS 13.2.2 和 12.1 上测试

POC

步骤1。创建持久性 cookie

var props = Dictionary<HTTPCookiePropertyKey, Any>()
props[HTTPCookiePropertyKey.name] = "HelloWorld"
props[HTTPCookiePropertyKey.value] = "666"
props[HTTPCookiePropertyKey.path] = "/"
props[HTTPCookiePropertyKey.domain] = ".wtf.com"
props[HTTPCookiePropertyKey.expires] = Date(timeIntervalSinceNow: 60 * 60)

let cookie = HTTPCookie(properties: props)
HTTPCookieStorage.shared.setCookie(cookie!)

第2步。从默认的 WK 存储中读取上一个 cookie

WKWebsiteDataStore.default().httpCookieStore.getAllCookies { (cookies) in
    for cookie in cookies {
        if cookie.name == "HelloWorld" { 
            NSLog("boommmmmmm!")
            return
        }
    }
}