The Wagtail example of using entities as given in this page of documentation isn't working for me. I am following the third example of using Entities which is supposed to create a button for stock price but no button is appearing for me in the rich text field in the admin editor. I have created a minimum reproducible example which demonstrates just this problem. https://github.com/kiwiheretic/stockentity. I am using Wagtail 4.1.1 which I understand is the latest version.
Can anyone help me see what I have missed and why the button doesn't appear as expected?
This or a similar question was asked in the Wagtail Slack. To get the button to appear, it either needs to be included in the features list when you create a new RichTextField OR you need to add it to the default configuration using the WAGTAILADMIN_RICH_TEXT_EDITORS setting.