In grapesjs plugin dir:
npm i grapesjs-custom-code
then
here
add
import grapesjscustomcode from 'grapesjs-custom-code';
on line 10
then in each
this.editor = grapesjs.init({
add to plugins
like
plugins: [grapesjswebpage, grapesjspostcss, grapesjsmautic, 'gjs-plugin-ckeditor',grapesjscustomcode],
Then build:
npm run build
It should be fine for all types of editors ie webpage, htmlemail and i think mjml
Works like a charm!