# Jsfiddle-like embeds?

**URL:** https://meta.discourse.org/t/jsfiddle-like-embeds/59215
**Category:** Feature
**Created:** [March 15, 2017, 11:01pm UTC](https://meta.discourse.org/t/jsfiddle-like-embeds/59215 "2017-03-15T23:01:21Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![david](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/david/32/157490_2.png) [@david](https://meta.discourse.org/u/david)
#### Post date: [March 20, 2017, 9:39am UTC](https://meta.discourse.org/t/jsfiddle-like-embeds/59215/5 "2017-03-20T09:39:56Z")

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Someone could make a custom onebox which turns a jsfiddle link into an embed… however any code in the fiddle is run as soon as the embed loads, which can be very risky. See here:

> [@Can we make custom oneboxes?](https://meta.discourse.org/t/can-we-make-custom-oneboxes/51463/3):
>
> The big thing that needs testing is that there is 0 JS execution prior to a user clicking “run”. We can not risk people setting up JavaScript bombs.

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