Mode 1.2.4 through 1.2.6 expand preview compatibility for customer applications with strict security policies and Next.js Server Actions.

Open apps with strict security policies

Apps with strict Content Security Policies can now load and remain selectable in Mode previews. This includes projects that use nonce- or hash-based rules and applications that send multiple policy headers.

Use Next.js Server Actions in previews

Forms and interactions backed by Next.js Server Actions now work through the preview browser. Actions receive the expected request origin while the rest of the application keeps its normal behavior.

Fixes

• Scrolling with a mouse no longer leaves stray scrollbars on the canvas.