Preview

Nothing to preview. Compose a page on the builder and press Preview, which carries whatever is on the canvas over to here. An address with a prompt in it composes one too, but only where the app server is running: on the published site this page is a frozen file, so a link like that arrives empty and the button is the way through.

This is the page on its own. Back to the workbench to keep editing, or take it away as a file from there. Two things this address cannot do, and both are stated rather than discovered: it carries the prompt that composed a page and not a page you edited afterwards, which is what the Preview button hands over instead; and on the published site it is a frozen file, so a prompt in a shared link composes nothing here even though the same prompt still composes on the workbench, which carries the block templates and this page does not.