# Onebox Twitter embedding failing when URL contains valid Markdown

**URL:** https://meta.discourse.org/t/onebox-twitter-embedding-failing-when-url-contains-valid-markdown/95009
**Category:** Support
**Created:** [8월 17, 2018, 4:15오후 UTC](https://meta.discourse.org/t/onebox-twitter-embedding-failing-when-url-contains-valid-markdown/95009 "2018-08-17T16:15:09Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![danekhollas](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/danekhollas/32/79637_2.png) [@danekhollas](https://meta.discourse.org/u/danekhollas)
#### Post date: [8월 17, 2018, 4:22오후 UTC](https://meta.discourse.org/t/onebox-twitter-embedding-failing-when-url-contains-valid-markdown/95009/2 "2018-08-17T16:22:16Z")

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Possibly a duplicate of this one:

> [@Oneboxing URLs with two dashes](https://meta.discourse.org/t/oneboxing-urls-with-two-dashes/84568/):
>
> Ok, here’s a weird bug. When an URL contains --, the markdown converts it do – For example, this URL: cs--preview.khanacademy.org If I explicitly insert a link, it works, even though it is rendered incorectly: [https://cs--preview.khanacademy.org](https://cs--preview.khanacademy.org) [https://cs–preview.khanacademy.org](https://cs--preview.khanacademy.org) PS: Hm, linkifying seems to be disabled here on meta, but hopefully the second example makes things clear.

By the way, this is not really about embedding, the link itself does not work, as you demonstrated.

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