I attached the patch. I think this feature will be helpful for use who archive web page data usually like me. To be more portable, I also added an defcustom option for other external command. And use an if condition to detect whether external command available, else warning user. -- [ stardiviner ] I try to make every word tell the meaning that I want to express. Blog: https://stardiviner.github.io/ IRC(freenode): stardiviner, Matrix: stardiviner GPG: F09F650D7D674819892591401B5DF1C95AE89AC3