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Bug 1507055 - AntiTrackingCommon::RedirectHeuristic must check the number of redirect entries, r=Ehsan

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Differential Revision: https://phabricator.services.mozilla.com/D60505

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Andrea Marchesini 2020-01-21 17:59:33 +00:00
parent f97dcc5818
commit b9bec0df94
1 changed files with 1 additions and 2 deletions
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toolkit/components/antitracking/AntiTrackingCommon.cpp
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@ -2372,10 +2372,9 @@ void AntiTrackingCommon::RedirectHeuristic(nsIChannel* aOldChannel,
nsCOMPtr<nsIPrincipal> trackingPrincipal;
nsCOMPtr<nsIURI> trackingURI;
if (allowedByPreviousRedirect) {
if (allowedByPreviousRedirect && !chain.IsEmpty()) {
const nsTArray<nsCOMPtr<nsIRedirectHistoryEntry>>& chain =
oldLoadInfo->RedirectChain();
MOZ_ASSERT(chain.Length() > 0);
rv = chain[0]->GetPrincipal(getter_AddRefs(trackingPrincipal));
if (NS_WARN_IF(NS_FAILED(rv))) {
LOG(("Can't obtain the principal from the redirect chain"));