1 files changed, 14 insertions, 0 deletions
diff --git a/dom/security/nsCSPContext.cpp b/dom/security/nsCSPContext.cpp
index 815c7734d..0a3e20305 100644
--- a/dom/security/nsCSPContext.cpp
+++ b/dom/security/nsCSPContext.cpp
@@ -343,6 +343,20 @@ nsCSPContext::GetBlockAllMixedContent(bool *outBlockAllMixedContent)
 }
 
 NS_IMETHODIMP
+nsCSPContext::GetEnforcesFrameAncestors(bool *outEnforcesFrameAncestors)
+{
+  *outEnforcesFrameAncestors = false;
+  for (uint32_t i = 0; i < mPolicies.Length(); i++) {
+    if (!mPolicies[i]->getReportOnlyFlag() &&
+        mPolicies[i]->hasDirective(nsIContentSecurityPolicy::FRAME_ANCESTORS_DIRECTIVE)) {
+      *outEnforcesFrameAncestors = true;
+      return NS_OK;
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
 nsCSPContext::GetReferrerPolicy(uint32_t* outPolicy, bool* outIsSet)
 {
   *outIsSet = false;