# Chat windows opens in full when using a tag URL

**URL:** https://meta.discourse.org/t/chat-windows-opens-in-full-when-using-a-tag-url/412652
**Category:** Support
**Created:** [September 17, 2026, 1:31pm UTC](https://meta.discourse.org/t/chat-windows-opens-in-full-when-using-a-tag-url/412652 "2026-09-17T13:31:56Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![Arkshine](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/arkshine/32/298682_2.png) [@Arkshine](https://meta.discourse.org/u/Arkshine)
#### Post date: [September 17, 2026, 6:48pm UTC](https://meta.discourse.org/t/chat-windows-opens-in-full-when-using-a-tag-url/412652/4 "2026-09-17T18:48:53Z")

</div>

Your issue comes from the other TC that defines a default chat channel.

It’s a timing issue. Your TC code navigated to the chat channel too early during page load, so chat can’t tell it apart from someone opening a chat link directly. And default behavior is to open in fullscreen.

I just added a setting to my TC ([PR](https://github.com/Arkshine/discourse-chat-sidebar/pull/4)):

 ![image](https://global.discourse-cdn.com/meta/original/4X/3/6/5/365b16101c18162361c31bd3172c1321dab4e879.png)

You can disable your TC, update mine, and give it a try!

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