inAppBrowser does not close the webView

I have an external URL and i try to open it in inAppBrowser using the below code.

const browse=this.iab.create(URL,_blank,options)

And closes using. this.browse.close()

But after closing the inAppBrowser, i can still see a blank page running behind. Due to this i am facing lot of UI issues.
If i try to use the app without directing from inAppBrowser everything works fine.

Can anyone knows what exactly is happening and how it can be solved.
Thanks in advance.