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Issue #2258 - Part 1: Support XCTO:nosniff when navigating.

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Moonchild 2025-08-12 16:18:38 +02:00 • committed by roytam1
commit e56e5d6cb1
10 changed files with 103 additions and 5 deletions
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11
netwerk/protocol/http/nsHttpChannel.cpp
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@ -14,6 +14,7 @@
#include "nsHttp.h"
#include "nsHttpChannel.h"
#include "nsHttpHandler.h"
#include "nsString.h"
#include "nsIApplicationCacheService.h"
#include "nsIApplicationCacheContainer.h"
#include "nsICacheStorageService.h"
@ -1100,6 +1101,16 @@ ProcessXCTO(nsIURI* aURI, nsHttpResponseHead* aResponseHead, nsILoadInfo* aLoadI
ReportTypeBlocking(aURI, aLoadInfo, "MimeTypeMismatch");
return NS_ERROR_CORRUPTED_CONTENT;
}
auto policyType = aLoadInfo->GetExternalContentPolicyType();
if (policyType == nsIContentPolicy::TYPE_DOCUMENT ||
policyType == nsIContentPolicy::TYPE_SUBDOCUMENT) {
// If the header XCTO nosniff is set for any browsing context, then
// we set the skipContentSniffing flag on the Loadinfo. Within
// NS_SniffContent we then bail early and do not do any sniffing.
aLoadInfo->SetSkipContentSniffing(true);
return NS_OK;
}
return NS_OK;
}