# Indicar quando a obtenção de miniatura do onebox falhar

**URL:** <https://meta.discourse.org/t/when-onebox-thumbnail-acquisition-fails-indicate-this/416269>\
**Category:** Feature\
**Created:** [1 Novembro , 2026 00:34 UTC](https://meta.discourse.org/t/when-onebox-thumbnail-acquisition-fails-indicate-this/416269 "2026-11-01T00:34:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![roke\_julian\_lockhart](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/roke_julian_lockhart/32/540179_2.png) [@roke\_julian\_lockhart](https://meta.discourse.org/u/roke_julian_lockhart)\
**Post date:** [1 Novembro , 2026 00:34 UTC](https://meta.discourse.org/t/when-onebox-thumbnail-acquisition-fails-indicate-this/416269/1 "2026-11-01T00:34:54Z")

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Caso contrário, isso gera discrepâncias entre a visualização de marcação e o conteúdo compilado:

> **[Onebox preview images do not render](https://linuxcommunity.io/t/onebox-preview-images-do-not-render/13115/2?u=rokejulianlockhart)**
>
> Thanks for the report! Turns out Discourse had recorded a failed download for those speedtest images at some point and never retried, so every rebake stripped them. Cleared those records and rebaked, they show now.

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**Author:** ![haydenjames](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/haydenjames/32/255678_2.png) [@haydenjames](https://meta.discourse.org/u/haydenjames)\
**Post date:** [1 Novembro , 2026 01:22 UTC](https://meta.discourse.org/t/when-onebox-thumbnail-acquisition-fails-indicate-this/416269/2 "2026-11-01T01:22:15Z")

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Observe que o fórum roda a ESR, portanto, pode não ser um problema atual. Além disso, houve algumas mudanças relacionadas:

> **[FIX: Honour Retry-After from upstreams instead of giving up ·...](https://github.com/discourse/discourse/commit/a67ab1b2d9)**
>
> \`FileHelper.download\` raised on any status past 400 without keeping the
> response headers, so a rate limited host was indistinguishable from a broken
> one and \`Retry-After\` was gone before anything c...

Se isso se tornar um problema antes que a correção chegue à ESR, executarei um trabalho periódico para limpar os downloads com falha e reprocessar as postagens (rebake).