# HyperFrames v0.7.21 Released on 2026-06-30. Adds a lint rule that errors on `crossorigin` on media (it renders fine but shows blank in preview) and fixes the root cause of id-less media rendering as a blank wash in the timing compiler. ## Features - **Lint:** Error on crossorigin on media (breaks preview) ([1faeba4a](https://github.com/heygen-com/hyperframes/commit/1faeba4aa5e309c1ea688e37e833ffaba60429eb), [#1793](https://github.com/heygen-com/hyperframes/pull/1793)) ## Fixes - **Core:** Root-cause id-less media wash in timingCompiler getAttr, drop the band-aid ([0dfedd11](https://github.com/heygen-com/hyperframes/commit/0dfedd111c49948c531f2e2b0b290e50024176e7), [#1792](https://github.com/heygen-com/hyperframes/pull/1792)) ## Docs & Examples - **Skills:** Instruct agents to run `hyperframes feedback` after render ([04700ea9](https://github.com/heygen-com/hyperframes/commit/04700ea9c51d6b29f8512e2ae4c2655054acf20b), [#1785](https://github.com/heygen-com/hyperframes/pull/1785)) ## Full changelog https://github.com/heygen-com/hyperframes/compare/v0.7.20...v0.7.21