Clears cached data containing application resource files (images, HTML, JavaScript files), cookies, and items stored in the Local Storage
Example
const clearCacheOptions = {
    appcache: true,
    cache: true,
    cookies: true,
    localStorage: true
};
fin.System.clearCache(clearCacheOptions).then(() => console.log('Cache cleared')).catch(err => console.log(err));Options
- cache: browsing data cache for html files and images (caching)
 - cookies: browser cookies
 - localStorage: browser data that can be used across sessions (local storage)
 - appcache: html5 application cache