When I change the preferred recipe for an item (by double-clicking), my choice is not recorded in the URL, so if I bookmark the URL for later reference, when I load it I end up with default recipe choices instead of preferred recipe choices.

Repro:

• Open https://resourcecalculator.com/minecraft/#stone=20&stonebricks=20
• Double-click on stone and change recipe to smelting
• Click "calculate resources"
• Note URL is unchanged