{"version":"2.1.251","anchor":"thumbnail-checks-in-the-artifact-publish-preflight","canonical_anchor":"thumbnail-checks-in-the-artifact-publish-preflight","heading":"Thumbnail checks in the artifact publish preflight","tier":"soon","area":"Artifacts","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.251\/e\/thumbnail-checks-in-the-artifact-publish-preflight","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.251","markdown":"### Thumbnail checks in the artifact publish preflight\n\nPublish checks could warn about page thumbnails, but the experiment is off.\n\n**What**\n\nPublish 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.\n\n**Details**\n\n- Gate: `tengu_cobalt_plinth_campion`, default false.\n\n**Evidence**\n\n`kind: \"thumbnail\"`\n\n- Flag `tengu_cobalt_plinth_campion`: Not enough to say (read for one account on one subscription tier against v2.1.251; this account: no value returned, anonymous baseline: no value returned, compiled default: off)\n- Area: Artifacts\n- Tier: Nothing to try yet\n- Useful: 1\/5\n- Signal: 3\/5\n- Present in the build but not switched on"}