broccoli filter for an es5 -> es3 recast. catch/finally -> ['catch'] & ['finally']
FIS3 transform to convert ES5 syntax to be ES3-compatible
Incremental DOM implementation for legacy browsers.
Ensure that reserved words are quoted at last
A CLI tool for check-es3-syntax
Event Driven JS
A Karma preprocessor for ES3 safe recast of reserved phrases.
Es3 webpack plugin v2