Mon15Oct

The behavior of the browser upon back-button depends on the cache policy of the server when it first delivered the page.

There was a Show HN for colorblind accessibility no later than a few hours ago. As someone who is red-green deficient, while I can see the difference, the list is barely readable. I would suggest using the whole background color of a cell, and using one dark shade of red for unavailable, and one bright shade of green for available.