Page will be frozen at the current scroll position and only the dialog will scroll (if too high for window)
Currently only tested in Chrome & Firefox on Windows. We need to do some more cross browser testing before merging.
cross browser testing via browserstack/locally:
code looks good 👍, there are some screenshot test failures
I've changed that to use
$(window).scrollTop() instead of
window.scrollY, which should fix the behavior for IE11