Publish checks could warn about page thumbnails, but the experiment is off.
Thumbnail preflight warnings exist behind an experiment defaulting off.
tengu_cobalt_plinth_campion Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.251: on
Read once, for one account on one subscription tier, against v2.1.251. It isn't a statement about your account. What a flag value here can and cannot tell you
What's wrong with this entry?
Publish validation for HTML pages can inspect thumbnails and report problems as preflight warnings, but the experiment controlling it defaults to off, so no publish runs the check in this build.
- Gate:
tengu_cobalt_plinth_campion, default false.
kind: "thumbnail"
Strings lifted out of the shipped bundle, so the claim above can be checked against them.