Josh JS localStorage Issue when using Safari in Private Browsing Mode

[sdether]

See issue here: http://stackoverflow.com/questions/14555347/html5-localstorage-error-with-safari-quota-exceeded-err-dom-exception-22-an

[Error] QuotaExceededError: DOM Exception 22: An attempt was made to add something to storage that exceeded the quota.
save (history.js, line 41)
History (history.js, line 36)

Any call to local storage will need to get wrapped in a try/catch to catch this error.