Front.detachTag(tag_name);
You can remove tags from a conversation.
For this, you will need the alias of the tag. The alias is a URL-friendly, human-readable name for the tag that is unique to your company. You can find the alias of a tag by looking at your browser URL when you click on a tag in Front.
tag_name: string
The tag alias to be detached from this conversation.
Front.detachTag('feature_request');