JavaFX Webview 未显示警告框

Question

So I started using JavaFX recently and one of it's features is WebView. It looks cool but what I discovered is that when button is clicked which invokes alert box then it is not displayed (it is invisible, but actually I know it is there).

How can I make it to be visible to the user?

Answer 1

So, actually I found an answer that was exactly the same I wanted and it has been answered earlier. Link: How can I make JavaFX web browser displays alert and confirm message

(So this question in this thread is a possible duplicate, but maybe it is good if there is more questions like this, then it is easier to find answer for such similar problem)