Need API to refresh current window from WWGM toolkit

Currently after calling API from WWGM toolkit, windows is not refreshed and user need enter F5 manually.

So I want capability that windows automatically refresh after calling API.

Or I want new API to refresh current window because neither wwgmtkWorkspaceView:::Refresh nor wwgmtkEmbeddedBrowser::displayCustomPage() doesn't have capability to refresh current window.