GT Page Blocks Builder 3.0.4
- Added a per-section Defer CSS option beside Load CSS from a file in both the visual builder and Block Editor. Off by default.
- Deferred files use non-blocking print media and switch to all media on load, with a noscript stylesheet fallback for visitors without JavaScript.
- Preserve deferred loading through saves and draft recovery. Builder previews continue to apply section CSS immediately, and failed file generation retains the inline fallback.
- Added regression coverage for mixed loading modes, duplicate CSS, head/body deduplication, preview behavior, and editor save payloads.