1 files changed, 4 insertions, 0 deletions
diff --git a/dom/security/nsCSPParser.h b/dom/security/nsCSPParser.h
index 30954b10f..1bfc56c65 100644
--- a/dom/security/nsCSPParser.h
+++ b/dom/security/nsCSPParser.h
@@ -252,6 +252,10 @@ class nsCSPParser {
     nsCSPChildSrcDirective* mChildSrc;
     nsCSPDirective*         mFrameSrc;
 
+    // cache variable to let nsCSPHostSrc know that it's within
+    // the frame-ancestors directive.
+    bool                    mParsingFrameAncestorsDir;
+
     cspTokens          mTokens;
     nsIURI*            mSelfURI;
     nsCSPPolicy*       mPolicy;