Loading iframe inside webpage

[homelander03]

My AdvancedWebview will load html page, in which an iframe will be loaded.

Expected Result:
Inside my html file iframe must be visible.

Actual Result.
Instead of loading inside iframe, iframe src url is being loaded in whole webview.

Findings
I think shouldOverrideUrlLoading is doing that thing, whenever it receives new url, it is loading inside Webview directly.
How can i resolve this issue?