Datepicker does not close on Chrome iOS

Open and Close, 1st Example (Classic Theme): http://amsul.ca/pickadate.js/api.htm#method-open-close

Datepicker does not close after clicking on button, I'm using Chrome (Version 33.0.1750.146). I've tested it on Firefox (Version 28.0) and Safari (Version 6.1.1), it works fine.
