Fixed a bug with timeout param.
Retries when ref.executeScript fails.
Interval to check postedMessage inside polyfill.
Merge branch 'master' into polyfill-fix
Fixed an issue in ExecuteScript.
Removed executeScript based write to LocalStorage.
Removed some logs.
Update win-open-polyfill.js
Merge pull request #438 from scrollback/polyfill-fix

Fallback if ref.executeScript fails.