I’d like to embed a jsfiddle in a conversation. How can we do that? The iframe embed code looks like: <iframe width="100%" height="300" src="//jsfiddle.net/trusktr/32cnvse3/embedded/" allowfullscreen="allowfullscreen" frameborder="0"></iframe>

Codepen is whitelisted by default: Maybe we can test jsfiddle, let me check.

[imagen] Falco: Maybe we can test jsfiddle, let me check. 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.

[imagen] sam: We can not risk people setting up JavaScript bombs. Yes, at SitePoint we onebox codepens, but fiddles are only linked to. It works well, and so far, AFAIK hasn’t introduced risk. https://www.sitepoint.com/community/t/css-hover-transition/238497/3?u=mittineague https://www.sit…

[imagen] sam: JavaScript bombs What are those? Something that makes the CPU work 100%?

[imagen] trusktr: What are those? Something that makes the CPU work 100%? Well unrestricted JS can lead to an enormous class of issues, leaking confidential info via JSONP, high CPU when you hit a topic, trick users into thinking the page has information on it that is fake, phishing, the sky …

For a simple harmless example that is more representative of a common JavaScript newbie mistake than a malicious script, try running this and see how well you like it for (var i = 0; i < 1000; i++) { alert(i); } My bet is you close your browser or stop scripts well before it completes.

What exactly is different about codepen compared to jsfiddle that makes only codepen embeddable? Can’t both run javascript, and don’t both run in a iframe?

[imagen] trusktr: What exactly is different about codepen compared to jsfiddle that makes only codepen embeddable? Can’t both run javascript, and don’t both run in a iframe? [imagen] Embed playbuzz quiz into post Support Codepen is a good netizen an…

Well, apparently codepen iframe embed doesn’t work. How about HTML: See the Pen JS Bomb Example by Joseph Orbegoso Pea ( @trusktr ) on CodePen .

Can we make custom oneboxes?

Support

Falco (Falco) 25 Mayo, 2017 18:24 10

Tema		Respuestas	Vistas
Jsfiddle-like embeds? Feature	8	3082	20 Marzo 2017
Embedding pens from CodePen Feature	66	16780	18 Agosto 2022
CodePen embed no longer working Support onebox , embedding	3	290	3 Noviembre 2025
CodePen is no longer oneboxing? Support	3	861	28 Junio 2019
Embed playbuzz quiz into post Support	6	3504	16 Marzo 2017

Can we make custom oneboxes?

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