So this will fail again when OSX will use WebDAVFS/3.1. Then maybe we should use something like:

```javascript
var webdavfsVersion = (self.httpRequest.headers['user-agent'].match(/webdavfs\/(\d+)/i) || [, 0])[1];
if (webdavfsVersion >= 3) {
   newProps["href"] = unorm.nfd(newProps["href"]);
}
```