# My markdown extension works in preview but not on cooked

**URL:** <https://meta.discourse.org/t/my-markdown-extension-works-in-preview-but-not-on-cooked/108544>\
**Category:** Development\
**Created:** [February 6, 2019, 12:20pm UTC](https://meta.discourse.org/t/my-markdown-extension-works-in-preview-but-not-on-cooked/108544 "2019-02-06T12:20:34Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![scottf](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/scottf/32/231686_2.png) [@scottf](https://meta.discourse.org/u/scottf)\
**Post date:** [February 6, 2019, 2:32pm UTC](https://meta.discourse.org/t/my-markdown-extension-works-in-preview-but-not-on-cooked/108544/3 "2019-02-06T14:32:40Z")

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Thank you for the reply Rafael.

The plugin’s code is here:

> **[Text Blaze / Discourse Snippets · GitLab](https://gitlab.com/textblaze/discourse-snippets)**
>
> GitLab.com

As you can see it is very simple. I am using ES Module imports, but only for adding a button to the editing bar. The Markdown extension ([Files · master · Text Blaze / Discourse Snippets · GitLab](https://gitlab.com/textblaze/discourse-snippets/blob/master/assets/javascripts/lib/markdown-it/snippets.js.es6)) doesn’t import anything.

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