polymer in webview issue

gistfile1.txt

06-27 00:07:36.350: I/chromium(3877): [INFO:CONSOLE(13)] "Uncaught TypeError: undefined is not a function", source: file:///android_asset/components/platform/platform.js (13)
06-27 00:07:36.360: I/chromium(3877): [INFO:CONSOLE(13)] "Uncaught TypeError: undefined is not a function", source: file:///android_asset/components/platform/platform.js (13)
06-27 00:07:36.360: I/chromium(3877): [INFO:CONSOLE(13)] "Uncaught TypeError: undefined is not a function", source: file:///android_asset/components/platform/platform.js (13)
06-27 00:07:36.390: I/chromium(3877): [INFO:CONSOLE(12)] "Exception caught during observer callback: TypeError: undefined is not a function
06-27 00:07:36.390: I/chromium(3877):     at b.classList (file:///android_asset/components/platform/platform.js:13:20941)
06-27 00:07:36.390: I/chromium(3877):     at Polymer.selectedIndexChanged (data:text/javascript;base64,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:45:26)
06-27 00:07:36.390: I/chromium(3877):     at e.invokeMethod (file:///android_asset/components/polymer/polymer.js:12:10242)
06-27 00:07:36.390: I/chromium(3877):     at e.notifyPropertyChanges (file:///android_asset/components/polymer/polymer.js:12:9459)
06-27 00:07:36.390: I/chromium(3877):     at Object.Observer.report_ (file:///android_asset/components/platform/platform.js:12:12892)
06-27 00:07:36.390: I/chromium(3877):     at Object.createObject.check_ (file:///android_asset/components/platform/platform.js:12:18385)
06-27 00:07:36.390: I/chromium(3877):     at Object.global.Platform.performMicrotaskCheckpoint (file:///android_asset/components/platform/platform.js:12:13792)
06-27 00:07:36.390: I/chromium(3877):     at file:///android_asset/components/platform/platform.js:16:24471
06-27 00:07:36.390: I/chromium(3877):     at Object.c [as callback_] (file:///android_asset/components/platform/platform.js:15:9547)
06-27 00:07:36.390: I/chromium(3877):     at c (file:///android_asset/components/platform/platform.js:12:27047)", source: file:///android_asset/components/platform/platform.js (12)