为了开发爽， 我win7下装vbox，共享文件夹，开发环境设置在vbox中的centos里。但保存js文件时，里面出现了一些莫名的东西，浏览器读取JS文件时会报错。 但这文件只要在linux中打开再保存，就正常了。
试了很多方法，比如何存文件格式，utf8,utf8 bom等，没用
linux 下保存文件会与win7下有区别吗（win7共享文件所在盘的格式为NTFS)
回复讨论(解决方案)
没用过 vbox
我用的 samba ，win 映射 samba 目录，win 用netbeans 或 editplus 写 js 没问题
不知道你 js 报错信息是什么
echo base64_encode(file_get_contents('有问题的js文件'));
输出来base64, byond compare 完全一样
这没意义啊， js 文件是浏览器解析时出问题。
为毛linux 下一保存就可以用了呢？
我估计是nginx缓存的问题，正在查找这个问题
对的，我要看到里面是什么情况
你不肯给我看，那就算了
问题很清楚了，只是没有找到解决方法
我在windows 下改一js 文件， 然后浏览器访问， 报错， 我在linux 下cp 这个文件， 然后删除它， 再将备份文件cp回原来文件，ok了。
这就是说，是nginx缓存在作怪。
我将静态文件访问缓存 expires 设置为off
又将引入文件加一个变化的版本号， 还是解决不了问题
另外需要注意的一点是，共享文件夹的格式为vboxsf，有可能不能正常使用Linux的sendfile模块的功能。一些常见的web server如Nginx和Apache，如果在它们的配置文件中启用了sendfile模块，可能会导致响应到客户端的文件内容错误。关于该问题的具体描述，有兴趣的同学可以Google "vboxsf sendfile" 了解。目前的建议是参考这些服务的具体配置方法，将sendfile模块禁用，以保证文件内容可以被正确发送。
完美解决：
nginx 设置
sendfile on 改为 off
这个只限于开发环境
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