Index: tracing/tracing/ui/base/polymer_preload.html |
diff --git a/tracing/tracing/ui/base/polymer_preload.html b/tracing/tracing/ui/base/polymer_preload.html |
index 4c21ef991ca0d1fb9cc1c3a9715928fd09317b4f..1e9191cfda7976b06575876231b9980626586bce 100644 |
--- a/tracing/tracing/ui/base/polymer_preload.html |
+++ b/tracing/tracing/ui/base/polymer_preload.html |
@@ -8,9 +8,10 @@ found in the LICENSE file. |
'use strict'; |
// Force Polymer into native shadowDom mode |
-if (window.Polymer) { |
+if (!window.Polymer) { |
+ window.Polymer = {}; |
+ window.Polymer.dom = 'shadow'; |
+} else if (!window.Polymer.Settings.useNativeShadow) { |
throw new Error('Cannot proceed. Polymer already present.'); |
eakuefner
2017/06/26 16:43:25
Can you update this error message? Polymer already
|
} |
-window.Polymer = {}; |
-window.Polymer.dom = 'shadow'; |
</script> |