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-rw-r--r--docshell/base/nsDocShell.cpp14
1 files changed, 13 insertions, 1 deletions
diff --git a/docshell/base/nsDocShell.cpp b/docshell/base/nsDocShell.cpp
index f3db4a3cb..b1fcc5c23 100644
--- a/docshell/base/nsDocShell.cpp
+++ b/docshell/base/nsDocShell.cpp
@@ -139,6 +139,7 @@
#include "nsISiteSecurityService.h"
#include "nsStructuredCloneContainer.h"
#include "nsIStructuredCloneContainer.h"
+#include "nsISupportsPrimitives.h"
#ifdef MOZ_PLACES
#include "nsIFaviconService.h"
#include "mozIPlacesPendingOperation.h"
@@ -9931,13 +9932,24 @@ nsDocShell::InternalLoad(nsIURI* aURI,
#endif
}
+ // Since Content Policy checks are performed within docShell as well as
+ // the ContentSecurityManager we need a reliable way to let certain
+ // nsIContentPolicy consumers ignore duplicate calls. Let's use the 'extra'
+ // argument to pass a specific identifier.
+ nsCOMPtr<nsISupportsString> extraStr =
+ do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+ NS_NAMED_LITERAL_STRING(msg, "conPolCheckFromDocShell");
+ rv = extraStr->SetData(msg);
+ NS_ENSURE_SUCCESS(rv, rv);
+
int16_t shouldLoad = nsIContentPolicy::ACCEPT;
rv = NS_CheckContentLoadPolicy(contentType,
aURI,
aTriggeringPrincipal,
requestingContext,
EmptyCString(), // mime guess
- nullptr, // extra
+ extraStr, // extra
&shouldLoad);
if (NS_FAILED(rv) || NS_CP_REJECTED(shouldLoad)) {