Set Custom Code

Create/update one site-wide Custom Code snippet — global CSS AND JS.

This is the only site-wide code layer WordPress renders without a theme edit, and one snippet carries both (<style> and <script> in the same body). It is what makes backdrop-filter, keyframe animation, sticky/scroll behaviour and third-party embeds deliverable without a manual wp-admin step.

name is the idempotency key — re-pushing updates in place rather than stacking duplicate snippets that all inject at once.

CHANGES EVERY PAGE, so it requires confirm=true, like the brand kit.

Read rendered in the response, not the status code: the plugin loopback- fetches the front page and reports whether the code is actually in the HTML.