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script: Properly handle removed iframes in GlobalScope::get_referrer (#32782)

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Signed-off-by: newmoneybigbucks <newmoneybigbucks@protonmail.com>
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
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newmoneybigbucks 2024-08-07 07:12:19 -04:00 • committed by GitHub
parent 9cb0e74cdc
commit 3fca6e015f
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3 changed files with 31 additions and 8 deletions
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20
components/script/dom/globalscope.rs
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@ -2428,14 +2428,18 @@ impl GlobalScope {
// Substep 3.1.3
while url.as_str() == "about:srcdoc" {
document = document
.browsing_context()
.expect("iframe should have browsing context")
.parent()
.expect("iframes browsing_context should have parent")
.document()
.expect("iframes parent should have document");
// Return early if we cannot get a parent document. This might happen if
// this iframe was already removed from the parent page.
let Some(parent_document) =
document.browsing_context().and_then(|browsing_context| {
browsing_context
.parent()
.and_then(|parent| parent.document())
})
else {
return Referrer::NoReferrer;
};
document = parent_document;
url = document.url();
}