Created attachment 276812 [details]
HTML file demonstrating issue
This is a bit hard to explain, but I've attached a reproducible reduction.
The attached HTML file creates a grid using flex box. In response to a Window "resize" event, the grid is resized to fill the entire window. Under Safari Technology Preview, the grid becomes stuck after the initial resize.
Steps to Reproduce:
1) Load the HTML in a web browser
2) Resize the window to be larger
3) The grid will snap to the new window size
4) Resize the window to be smaller
In Safari 9, Chrome, and Firefox, the grid should continue to resize and fill the window on both the horizontal and vertical axis.
In Safari Technology Preview and WebKit nightlies, each row in the grid becomes "stuck" after the initial resize, and won't shorten. The grid continues to work in the horizontal axis.
Yeah looks like a bug. I'll try to take a look
(In reply to comment #3)
> Any update?
No update I'm afraid. I'm really busy ATM with some other stuff so I don't think I could devote time to this bug in the following weeks.
I've tried this today and it seems it has been already fixed. Could you verify?