SSR works ok for most components but there are some issues:

• Tabs should initially use the non-JS styling from govuk-frontend when rendering on the server, then switch to interactive tabs when hydrated on the client
• Tabs have an issue with auto-generated ID where the ID in the link doesn't update upon hydration even though the ID in the aria-controls does (Node attribute value is not reactive after client side hydration vuejs/vue#11398 and https://vuejs.org/guide/scaling-up/ssr.html#custom-directives might be relevant)
• Accordion :remember-expanded="true" causes a hydration mismatch because server doesn't have sessionStorage