通过 MediaDevices.getUserMedia() 创建的文件是否保存在用户的浏览器上? [英]Is a file created through MediaDevices.getUserMedia() saved on the user’s browser?
尽管浏览器预取/缓存,如何判断文件是否真的被下载和保存? [英]How to tell if a file was really downloaded and saved, despite browser prefetch/cache?
如何在不使用jQuery或javascript更改浏览器设置的情况下保留cookie? [英]How to Keep cookie without changing browser setting using jQuery or javascript?