fix leak, wss links, errors from other pr

Author: julian-ladjani

Source/SocketIO/Engine/SocketEngine.swift

@@ -572,6 +572,7 @@ open class SocketEngine: NSObject, WebSocketDelegate, URLSessionDelegate,
         polling = true
         probing = false
         invalidated = false
+        session?.invalidateAndCancel()
         session = Foundation.URLSession(configuration: .default, delegate: sessionDelegate, delegateQueue: queue)
         sid = ""
         waitingForPoll = false
@@ -723,6 +724,13 @@ open class SocketEngine: NSObject, WebSocketDelegate, URLSessionDelegate,
 
         if let error = error as? WSError {
             didError(reason: "\(error.message). code=\(error.code), type=\(error.type)")
+        } else  if let error = error as? HTTPUpgradeError {
+            switch error {
+            case let .notAnUpgrade(int, _):
+                didError(reason: "notAnUpgrade. code=\(int)")
+            case .invalidData:
+                didError(reason: "invalidData")
+            }
         } else if let reason = error?.localizedDescription {
             didError(reason: reason)
         } else {

Source/SocketIO/Manager/SocketManager.swift

@@ -575,7 +575,7 @@ open class SocketManager: NSObject, SocketManagerSpec, SocketParsable, SocketDat
 
         _config = config
 
-        if socketURL.absoluteString.hasPrefix("https://") {
+        if socketURL.absoluteString.hasPrefix("https://") || socketURL.absoluteString.hasPrefix("wss://") {
             _config.insert(.secure(true))
         }