---
title: "Apparently CodePen 2.0 sends data to their servers as you type"
description: "Indexed Hacker News story."
canonical: "https://www.symbaiex.com/news/apparently-codepen-2-0-sends-data-to-their-servers-as-you-type-49596976"
last-updated: "2026-09-07T11:22:40.000Z"
---
# Apparently CodePen 2.0 sends data to their servers as you type

Source: Hacker News
Hacker News: https://news.ycombinator.com/item?id=49596976


They send all typed into editor input to codepen.dev almost immediately (you would see in 1-2 sec after you typed your secret that it appears in respective Network/Response tab) even before one saved it. I tested this with a unique marker: after typing it into index.html, CodePen ran a build with "save:false", and the marker then appeared verbatim in the HTML served from the generated "*.codepen.dev preview". Thus, if you ever entered some secrets in there by mistake consider them compromized even if you did not publish/save the pen