samesite=none for the twsproxy cookie as well

tes/apiendpoints.py

@@ -651,7 +651,7 @@ class CreateTunnel(Resource):
                        localbind=localbind, authtok=authtok)
             response = make_response(json.dumps({'localport':port}),200)
             response.mimetype = 'application/json'
-            response.set_cookie('twsproxyauth', authtok, secure=True)
+            response.set_cookie('twsproxyauth', authtok, secure=True, samesite=None)
             return response
         except AppParamsException as e:
             import traceback