refreshr is a tool which uses JSONP to poll for changes in an arbitrary directory and automtaically refreshes the webpage when any changes are detected.
› npm install -g refreshr
Start refreshr in the directory you wish to watch:
› refreshr <script src="http://localhost:9898/refreshr.js"></script>
Copy the script-tag and paste it into your .html file. Your webpage will automatically reload itself when changes are made to files contained in the directory where you started