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

There is discussion of this, including links to browser testing and backwards compatibility, in the proposed RFC 5987, "Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters."

RFC 2183 indicates that such headers should be encoded according to RFC 2184, which was obsoleted by RFC 2231, covered by the draft RFC above.