On Android, Toga WebView cannot create dialogs from JS alert() or prompt() in loaded web pages. Toga on windows has no issue showing JS alerts or prompts. I cannot test this on Ubuntu since I'm using ...

I'm having a bit of a JavaScript issue. I want to open a JavaScript prompt() window from the parent window, then open a new (popup) window (the contents of this window are not under my control ...

On iOS, all calls into JavaScript must be done from the main UI thread. On newer versions of Android (KitKat and later), it will deadlock if a call to JavaScript is made synchronously from the main UI ...