[DevTools] Fallback to MainFrameNavigated event url in Security panel

third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js

Index: third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js b/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
index 0937c3ef878adb27e61b22c3b300ae9387de8d87..1f23d0f4246b9294151d66826327ecedea21c340 100644
--- a/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
+++ b/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
@@ -347,11 +347,14 @@ Security.SecurityPanel = class extends UI.PanelWithSidebar {
     // explanations to reflect the new counts.
     this._mainView.refreshExplanations();
 
-    if (request) {
-      var origin = Common.ParsedURL.extractOrigin(request.url());
-      this._sidebarTree.setMainOrigin(origin);
+    // If we could not find a matching request (as in the case of clicking
+    // through an interstitial, see crbug.com/669309), set the origin based upon
+    // the url data from the MainFrameNavigated event itself.
+    const origin = Common.ParsedURL.extractOrigin(request ? request.url() : frame.url);

[lushnikov, 2017/03/21 18:26:36]

nit: we don't use 'const' since it causes V8 deoptimization

[elawrence, 2017/03/22 01:04:41]

Done.

+    this._sidebarTree.setMainOrigin(origin);
+
+    if (request)
       this._processRequest(request);
-    }
   }
 
   _onInterstitialShown() {