# Blacklist vs whitelist onebox

**URL:** <https://meta.discourse.org/t/blacklist-vs-whitelist-onebox/21811>\
**Category:** Feature\
**Created:** [11월 4, 2014, 11:48오전 UTC](https://meta.discourse.org/t/blacklist-vs-whitelist-onebox/21811 "2014-11-04T11:48:57Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![Gargron](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/gargron/32/122397_2.png) [@Gargron](https://meta.discourse.org/u/Gargron)\
**Post date:** [9월 7, 2017, 1:52오전 UTC](https://meta.discourse.org/t/blacklist-vs-whitelist-onebox/21811/13 "2017-09-07T01:52:04Z")

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Is it behind a setting? I just tried it on my hosted Discourse and it didn’t work.

Excuse me while I try it right here:

> **[Unchained A.I. (@Sparkyopteryx@mastodon.social)](https://mastodon.social/@Sparkyopteryx/17213155)**
>
> Attached: 1 image
> 
> Gotta do more post catch-up here, so here's one commission I finished last week. WWI bat pilot and his Salmson 2 biplane: https://mastodon.social/media/Y325\_B0Vfuuy3D9rklk

Hm nope, doesn’t work - displays the OpenGraph tags instead. Before you ask - I did test the OEmbed discovery implementation on Mastodon’s side using other OEmbed tools.

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