Our topic this week is JavaScript and it's many dangers. We discuss how we allow JavaScript in Pens and how we make that safe from cross-site scripting and other dangers and annoyances.

Show Links:

If you have a job opening at your company, post it on the CodePen Job Board! It only takes a few minutes and you'll be reaching a huge community of potential candidates. If you're looking for a job, that's the place to go!

If you're enjoying this show, please take a minute to leave us a review in iTunes. We really appreciate it, and thanks to everyone who has already left a review!


  • Evan Wieland

    Can’t wait to listen to this! I’ve often wondered what you guys do to keep someone from piping malicious content through your iFrames.

  • peterherz

    This one is basically the name (Codepen) in itself.. the metaphor being playpen and the mesh being the custom layered/fortified provisional sec. layers to prevent ‘users’ or playful kids, from going out of boundaries for playing.