Keyboard shortcut that bypasses see-through cover page?

[tarjk]

I recall a keyboard shortcut that was introduced. When a user lands on a webpage and the main page is covered up by a dialogue window with a murky background that covers the entire page. There was a way for the user to click and bypass this murky background coverpage. Anyone know what this shortcut is? I can't remember it and I can't find a reference to it in the Changelog.

[barbaz]

https://noscript.net/changelog#2.5.3 ?

[therube]

Or maybe, Shift + Left-click.