Preview previously started Studio even when the path was invalid (e.g.
`hyperframes preview #`), yielding an empty project view. Align preview
with lint/render by resolving the project up front, and add a clearer
error when `#` is passed as a directory argument.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(runtime): respect hidden ancestor clips in Studio preview (#1387)
Studio-stamped GSAP tween targets inside timed clips were getting
visibility:visible for the full composition, overriding hidden parent
panels. Skip stamping descendants of authored clips and suppress
visibility on children when an ancestor timed clip is hidden.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(runtime): scope ancestor visibility walk to Studio iframe only
Address review feedback: the hierarchical visibility guard now runs only
when window.parent !== window, matching the Studio-only stamping fix.
Render mode keeps prior per-element visibility semantics. Adds a render-mode
regression test and documents the null rootComp case in findTimedClipAncestor.
Co-authored-by: Cursor <cursoragent@cursor.com>
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Co-authored-by: Cursor <cursoragent@cursor.com>
