# Preview bug (loom, slideshare etc..)

**URL:** https://meta.discourse.org/t/preview-bug-loom-slideshare-etc/138862
**Category:** UX
**Created:** [January 16, 2020, 6:43pm UTC](https://meta.discourse.org/t/preview-bug-loom-slideshare-etc/138862 "2020-01-16T18:43:38Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![kam44](https://avatars.discourse-cdn.com/v4/letter/k/e47c2d/32.png) [@kam44](https://meta.discourse.org/u/kam44)
#### Post date: [January 16, 2020, 6:43pm UTC](https://meta.discourse.org/t/preview-bug-loom-slideshare-etc/138862/1 "2020-01-16T18:43:38Z")

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I found a bug in the preview of loom and slideshare link (an probably others) :

 ![Capture d’écran 2020-01-16 à 19.43.13](https://global.discourse-cdn.com/meta/original/3X/7/7/775079a54278ebd16373c1a754501f8656fd699a.png)

But when it’s posted, it works well :

> **[Client Challenge](https://www.slideshare.net/slideshow/growth-hacking/14040656)**

https://www.loom.com/embed/561434072c9a4bea828fe796fcd5d5a4

It’s problematic because people can think that the integration doesn’t works so they don’t post it.

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### Author: ![awesomerobot](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/awesomerobot/32/142900_2.png) [@awesomerobot](https://meta.discourse.org/u/awesomerobot)
#### Post date: [January 16, 2020, 6:57pm UTC](https://meta.discourse.org/t/preview-bug-loom-slideshare-etc/138862/2 "2020-01-16T18:57:01Z")

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I don’t believe this is a bug, previously when previewing videos and other media types in the composer they’d re-render on every keystroke… so to avoid that we now use a generic placeholder instead.

[https://github.com/discourse/onebox/commit/b987f97e36843365737d9fa944ef209c607044c4](https://github.com/discourse/onebox/commit/b987f97e36843365737d9fa944ef209c607044c4)

I can see how the placeholders could be interpreted as a broken embed… I wonder if there’s something we can do to clarify…

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### Author: ![kam44](https://avatars.discourse-cdn.com/v4/letter/k/e47c2d/32.png) [@kam44](https://meta.discourse.org/u/kam44)
#### Post date: [January 16, 2020, 7:14pm UTC](https://meta.discourse.org/t/preview-bug-loom-slideshare-etc/138862/3 "2020-01-16T19:14:48Z")

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Maybe if the preview doesn’t work, it should be better to don’t use the placeholder but just keep the link, then people will have the good surprise to see that it’s embeded when posted, instead that thinking that there is a bug.

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### Author: ![Falco](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/falco/32/179432_2.png) [@Falco](https://meta.discourse.org/u/Falco)
#### Post date: [January 16, 2020, 10:29pm UTC](https://meta.discourse.org/t/preview-bug-loom-slideshare-etc/138862/4 "2020-01-16T22:29:17Z")

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> [@awesomerobot](#):
>
> I wonder if there’s something we can do to clarify…

Add a title tag saying “this will become media on topic submission”?

Not sure we should do anything in here to pollute the preview…