@ohevidence In theory you can. The low-level API is webpage.onFileDownload https://t.co/dW3Hck2Rjj . I don't know if CasperJS is using this method or not.
The webdriver implementation in SlimerJS will be dropped, and probably replaced by the webdriver implementation of Firefox if possible https://t.co/b5aAwBcJLD https://t.co/Y0VOhK7qTF