Browser Widget for iOS platform always get same params of "onPageStarted (eventObject, params)" Event

I am using Browser Widget for Loading External WebPage in my VoltMX-Iris(V9.5.8) application.

In onPageStarted (eventObject, params) Event, I will use the params Value as the condition for doing some process when the WebPage starts loading.

In Android platform when I move to other Pages in the BrowserWidget, I can get different params from the onPageStarted Event, but I always get the same params of The first loaded page in iOS platform. I tried to use cacheConfig property of the Browser to disable Browser caching, It dosn't change, alway the same params returned.

Does anyone can help me? Thanks in advance for ur help.

Browser_Events.htm#onPageStarted

Browser_Properties.htm#cacheConfig