DevTools protocol interception, blocking & modification of requests

third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp

Index: third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
diff --git a/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp b/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
index 7d076919f2662f55d71cf10b0ac3ea42697ece4c..c514823ea13efdb07e8e7ed7f71c7ddf67000cd2 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
+++ b/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
@@ -757,11 +757,19 @@ void InspectorNetworkAgent::didReceiveResourceResponse(
                                     responseSecurityDetails->certificate);
   }
 
-  if (resourceResponse && !resourceIsEmpty)
+  String interceptId =
+      response.httpHeaderField(HTTPNames::X_DevTools_Intercept_Id);
+  if (!interceptId.isEmpty()) {
+    const_cast<ResourceResponse&>(response).clearHTTPHeaderField(
+        HTTPNames::X_DevTools_Intercept_Id);
+  }
+
+  if (resourceResponse && !resourceIsEmpty) {
     frontend()->responseReceived(requestId, frameId, loaderId,
                                  monotonicallyIncreasingTime(),
                                  InspectorPageAgent::resourceTypeJson(type),
-                                 std::move(resourceResponse));
+                                 std::move(resourceResponse), interceptId);
+  }
   // If we revalidated the resource and got Not modified, send content length
   // following didReceiveResponse as there will be no calls to didReceiveData
   // from the network stack.