0.3.16

A page could hang the server. A spacer that fills, in a card with padding, in a grid: the grid measures its cells against "no limit", the card took its padding off that, and the spacer read what was left as a real height — 268 million units. Encoding a rectangle that tall ran a recursion out of stack on the server thread, which stood still for ten seconds first. Found on a live client, on the first page that did it.

• "No limit" survives being handed through padding: anything within half of it still means "as much as you like".
• The encoder draws only what can be on the screen, whatever it is given, so no layout mistake can take the server down through it again.