Don't add extra items to sheriff-o-matic history.

Tools/GardeningServer/ui/ct-embedded-flakiness-dashboard.html

Index: Tools/GardeningServer/ui/ct-embedded-flakiness-dashboard.html
diff --git a/Tools/GardeningServer/ui/ct-embedded-flakiness-dashboard.html b/Tools/GardeningServer/ui/ct-embedded-flakiness-dashboard.html
index 95df550690d7c53c37e6bbe042849913f6a04d43..9cd66e6a124a6b483a95d4d9fd2665a0a599a830 100644
--- a/Tools/GardeningServer/ui/ct-embedded-flakiness-dashboard.html
+++ b/Tools/GardeningServer/ui/ct-embedded-flakiness-dashboard.html
@@ -32,7 +32,7 @@ found in the LICENSE file.
       },
 
       testChanged: function() {
-        this.$.iframe.src = this.test.embeddedFlakinessDashboardURL(this.tree);
+        this.$.iframe.contentWindow.location.replace(this.test.embeddedFlakinessDashboardURL(this.tree));

[ojan, 2014/08/16 01:40:56]

Add a comment explaining why we use replace?

Also, does this really work? Can you access location on a cross-origin iframe?

[michaelpg, 2014/08/16 02:05:45]

It works, but it's weird. You can get a reference to the iframe's window, but
you can't enumerate the window's keys. However, you can call
window.location.replace, and you can even set window.location.href (but trying
to read that property throws a security error).

On my machine it successfully serves pages from
https://test-results.appspot.com.

I think it comes from this:
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit...

       },
 
     });