Sanitise all Wysiwyg field type using Keystone after hook

[ticidesign]

If the content of the WYSIWYG is stored as HTML the only option I know is to set the inner HTML, dangerously - but obviously with strict limits and sanitation.

Here is a really simple example where I just strip the HTML on the input (expecting markdown)
https://github.com/keystonejs/keystone-jamstack-plus/blob/master/schema/comment.js#L66

NPM package: https://www.npmjs.com/package/sanitize-html