Don't require page parameters when using preview from the builder.

Since url parameter conditions have a ‘no value’ behavior, it would be handy to be able to launch a page with the builder’s preview button (or the preview row action on the Pages page) and not provide a parameter.

Duly noted.   Maybe an “ignore” button or somthing like that… 

^^^ bump for more votes ^^^

Same issue here (5 years later)