Using External Plugins
External plugins can be added to your TinyMCE configuration using the external_plugins
configuration option.
Using external plugins is identical to when you use a self-hosted version of TinyMCE. Take care to ensure your plugin definition URLs are publicly accessible, and either relative to the site's root or absolute.
1{2 "external_plugins": {3 "my_plugin_name": "/plugins/my_plugin_name/plugin.min.js"4 },5 "toolbar": "... my_plugin_name ..."6}
The building of your plugin files needs to be part of your site's build steps. Make sure that the build files end up in your site's public folder.