Scroll bug in iOS13 (Chrome or Safari) with intercom iframe (z-index:-1)

I’ve recorded animated gif with reproduced scrolling bug in div element. If I remove zIndex property from iframe#intercom-iframe or change it to zero or one (any positive number) then the problem goes away. Sorry that I can’t give access to environment

@realus Hey! Is the issue that you’re having with scrolling on the messenger, that the scroll functionality is slow/sluggish? I can’t quite get a good handle of what poor behavior you’re seeing from the GIF :sweat_smile: