SSO isn't working even after setting cookie in WKWebview

I have 2 applications, both app uses the WKWebview for SSO login. Both apps are working fine individually.

Now let's take this below scenario.

Suppose i logged in one app, retrieved the WKWebview cookie from this app & set this cookie info in WKWebview of 2nd app.My expectation is SSO should work in 2nd app but it isn't working.

Below is the code i am using for Retrieving cookie from WKwebview after login from 1st app

extension WKWebView {
@available(iOS 11.0, *)
 private var httpCookieStore: WKHTTPCookieStore  {
    return WKWebsiteDataStore.default().httpCookieStore
 } 
 func getCookies(for domain: String? = nil, completion: @escaping ([String : Any])->())  { 
var cookieDict = [String : AnyObject]() if #available(iOS 11.0, *) { 
httpCookieStore.getAllCookies {
 (cookies) in for cookie in cookies { 
       print("cookie iterator started") print("cookie=======\(cookie)") 
       if let domain = domain {
          if cookie.domain.contains(domain) {
           cookieDict[cookie.name] = cookie.properties as AnyObject?
          }
       }else {
       cookieDict[cookie.name] = cookie.properties as AnyObject? 
       }
 } 
completion(cookieDict)
 } 
   } else { // Fallback on earlier versions 
       } 
  }
}

Below is the code i am using for setting cookie in WKwebview of 2nd app

let cookie= HTTPCookie(properties: [
 .domain: "dev.mycompany.net",
 .path: "/",
 .name: "PF", 
.value: "327y48234g2hgdhjwedguyw23oSYVbVLwf9", 
.secure: "TRUE",
 .version: 1, 
.expires: NSDate(timeIntervalSinceNow: (562225018+1000000)) ])!
 HTTPCookieStorage.shared.cookieAcceptPolicy = HTTPCookie.AcceptPolicy.always 
HTTPCookieStorage.shared.setCookie(cookie)