Grails encoding downloadable file

Question

I'd like to encode downloadable file name. I want to set file name with polish letters like ą ę ć ż ź. This is my code:

response.setHeader("Content-disposition", "attachment; filename=" + URLEncoder.encode("ŻżŹźĄą", 'UTF-8'))

It works on Chrome but MozillaFirefox shows it not correctly.

How to set encoding properly?

score 0 · Accepted Answer · edited May 23 '17 at 10:34

0

It won't work. HTTP headers require implicitly either ASCII but upmost Latin 1 encoding. There is no standard to encode the name in UTF-8. Yolu will be better off if you decompose the letters. See this: How to encode the filename parameter of Content-Disposition header in HTTP?

edited May 23 '17 at 10:34

Community

answered Aug 13 '12 at 14:23

Michael-O

Chrome and IE9 handles it so it's strange why Mozilla changes filename to sth like this %C5%BC – kmb Aug 13 '12 at 14:39
Actually, there *is* a standard to encode the parameter in UTF-8 (RFC 5987). – Julian Reschke Aug 13 '12 at 16:51
My second link points to that. It still does not matter because no browser supports this. – Michael-O Aug 13 '12 at 17:34
Michael-O: all major shipping browsers support RFC 5987. – Julian Reschke Aug 13 '12 at 18:54
Michael-O: well, IE9 does. Speaking of crappy: it took Apple until two weeks ago to fix Safari, and there's no update for Windows. – Julian Reschke Aug 14 '12 at 09:56
IE9 ist not available for Windows. Though I prefer Mozilla and/or Webkit-based products, you still have issues. It's best to avoid such an encoding for now. – Michael-O Aug 14 '12 at 10:12

score 0 · Answer 2 · answered Aug 13 '12 at 16:38

0

It's because Chrome and IE are buggy. "%" isn't special in Content-Disposition parameters, unless you use the encoding defined in RFC 5987.

answered Aug 13 '12 at 16:38

Julian Reschke

2 Answers2