# Custom javascript in \ disappear **URL:** https://meta.discourse.org/t/custom-javascript-in-head-disappear/144356 **Category:** Development **Created:** [March 15, 2020, 4:18am UTC](https://meta.discourse.org/t/custom-javascript-in-head-disappear/144356 "2020-03-15T04:18:15Z") **Posts on this page:** 5 **Page:** 1

### Author: ![Ares-X](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/ares-x/32/172823_2.png) [@Ares-X](https://meta.discourse.org/u/Ares-X) #### Post date: [March 15, 2020, 4:18am UTC](https://meta.discourse.org/t/custom-javascript-in-head-disappear/144356/1 "2020-03-15T04:18:16Z")

Discourse Version: 2.4.1 i updated discourse to the latest version，then i found some javascript added in `` doesn’t show in html source for example,the google analytics script was added in `edit CSS/HTLM` ![image|](https://global.discourse-cdn.com/meta/original/3X/3/d/3d176a8f4f6a9204e10de8f3375cf9c012d17fd4.png) Why does this happen，i’m very confused ---

### Author: ![Ares-X](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/ares-x/32/172823_2.png) [@Ares-X](https://meta.discourse.org/u/Ares-X) #### Post date: [March 15, 2020, 4:32am UTC](https://meta.discourse.org/t/custom-javascript-in-head-disappear/144356/2 "2020-03-15T04:32:57Z")

if i make the `