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script: Avoid double borrow crash on iframe focus (#35742)

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Signed-off-by: Seán de Búrca <leftmostcat@gmail.com>
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Sean Burke 2025-03-03 02:10:16 -08:00 • committed by GitHub
parent 28cea920ec
commit 649291bf69
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3 changed files with 28 additions and 4 deletions
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16
components/script/script_thread.rs
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@ -2498,10 +2498,18 @@ impl ScriptThread {
.find_document(parent_pipeline_id)
.unwrap();
let iframes = document.iframes();
if let Some(iframe) = iframes.get(browsing_context_id) {
document.request_focus(Some(iframe.element.upcast()), FocusType::Parent, can_gc);
}
let Some(iframe_element_root) = ({
// Enclose `iframes()` call and create a new root to avoid retaining
// borrow.
let iframes = document.iframes();
iframes
.get(browsing_context_id)
.map(|iframe| DomRoot::from_ref(iframe.element.upcast()))
}) else {
return;
};
document.request_focus(Some(&iframe_element_root), FocusType::Parent, can_gc);
}
fn handle_post_message_msg(