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[Dom/network] Disable DNS prefetching if document nodePrincipal is systemPrincipal

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Moonchild 2024-07-10 09:14:47 +02:00 • committed by roytam1
commit c94c6a5785
1 changed files with 8 additions and 1 deletions
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9
dom/html/nsHTMLDNSPrefetch.cpp
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@ -94,8 +94,15 @@ nsHTMLDNSPrefetch::Shutdown()
}
bool
nsHTMLDNSPrefetch::IsAllowed (nsIDocument *aDocument)
nsHTMLDNSPrefetch::IsAllowed(nsIDocument *aDocument)
{
// Do not use prefetch if the document's node principal is the system
// principal.
nsCOMPtr<nsIPrincipal> principal = aDocument->NodePrincipal();
if (nsContentUtils::IsSystemPrincipal(principal)) {
return false;
}
// There is no need to do prefetch on non UI scenarios such as XMLHttpRequest.
return aDocument->IsDNSPrefetchAllowed() && aDocument->GetWindow();
}