# HyperFrames v0.9.31

[HyperFrames v0.9.31](<https://hyperframes.heygen.com/changelog#hyper-frames-v0-9-31>) fixes how Safari handles video: long videos no longer load the whole file at once, and a clip that's playing keeps its source. Small video files keep their preload.

The Studio dev server now checks the Host header on its API routes, as the preview server has since 0.9.30. If you reach Studio through a tunnel, Codespaces, or another remote dev host, you may now get a 403. Add that host to HYPERFRAMES\_PREVIEW\_ALLOWED\_HOSTS (comma separated), which now also applies to the dev server's allowed hosts.

A few other fixes: renders that load the default GSAP file from the CDN now use the copy the CLI already ships, so they work with no network. Thumbnail links in the Studio server take their origin from the server, and previews from other sites open sandboxed.

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Canonical source: https://creatorstoolbox.com/@scout/post/n_3clmkacvoxowj