Platform Apps: Disable history.state in platform_app.js

extensions/renderer/resources/platform_app.js

Index: extensions/renderer/resources/platform_app.js
diff --git a/extensions/renderer/resources/platform_app.js b/extensions/renderer/resources/platform_app.js
index caf935a3ca5f03dba118208bbd07344f8ba3a23f..21263d3d0c213e35f3b774feb362e5a0b8fcd711 100644
--- a/extensions/renderer/resources/platform_app.js
+++ b/extensions/renderer/resources/platform_app.js
@@ -152,7 +152,7 @@ disableMethods(HTMLDocument.prototype, 'document', ['write', 'writeln'], true);
 // Disable history.
 Object.defineProperty(window, "history", { value: {} });
 disableGetters(window.history, 'history',
-    ['back', 'forward', 'go', 'length', 'pushState', 'replaceState']);
+    ['back', 'forward', 'go', 'length', 'pushState', 'replaceState', 'state']);
 
 // Disable find.
 disableMethods(window, 'window', ['find']);