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Unreal Webview problem to go back

I am developing a quiz where if the player gives the wrong answer, at the last where the result is shown the wrong answer’s question-answer will get a button beside it.
But the problem is how to go back to the previous url like in the android studio if(webView.canGoBack())
{
webView.goBack();
}
I want to create the same thing in blueprints.