How to encode the filename parameter of Content-Disposition header in HTTP?

Question

Web applications that want to force a resource to be downloaded rather than directly rendered in a Web browser issue a Content-Disposition hea

Answer 1

Put the file name in double quotes. Solved the problem for me. Like this:

Content-Disposition: attachment; filename="My Report.doc"

http://kb.mozillazine.org/Filenames_with_spaces_are_truncated_upon_download

I've tested multiple options. Browsers do not support the specs and act differently, I believe double quotes is the best option.