html5 requestFileSystem调用失败
【平台:chrome浏览器】调用webkitRequestFileSystem()请求文件系统出错,错误提示:DOMException: It was determined that certain files are unsafe for access within a Web application, or that too many calls are being made on file resources.
代码:webkitRequestFileSystem(PERSISTENT, 5*1024*1024, function(fs){....}, errorHandler);
什么情况??