# Post editor; Heading not working for less than 3 charactors

**URL:** https://meta.discourse.org/t/post-editor-heading-not-working-for-less-than-3-charactors/34507
**Category:** Bug
**Tags:** markdown-it-review
**Created:** [10월 14, 2015, 4:36오후 UTC](https://meta.discourse.org/t/post-editor-heading-not-working-for-less-than-3-charactors/34507 "2015-10-14T16:36:20Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [6월 26, 2017, 2:27오후 UTC](https://meta.discourse.org/t/post-editor-heading-not-working-for-less-than-3-charactors/34507/3 "2017-06-26T14:27:23Z")

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Fixed now:

## in

😌

> [@CommonMark testing started here!](https://meta.discourse.org/t/commonmark-testing-started-here/65121/):
>
> Per our [migration plans](https://meta.discourse.org/t/discourse-commonmark-migration-plans-confetti-ball-balloon), I just enabled [markdown.it](https://github.com/markdown-it/markdown-it) at Meta. It is an excellent [CommonMark](http://commonmark.org/) compliant engine. I expect quite a few edges to be found during this period of testing. Do not open bugs about the new Engine, just reply here. I/we will be updating the top post here with the list of issues and striking out stuff as it is fixed. Current known issues (to be fixed)white_check_mark Onebox vanishes after you start typing and works not-super consistently white_check_mark pending…

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