RFC2616 - content-disposition with special characters - Problem to export file

Hello

The cause of the problem, is like the SOL said, a back end answer that not compliance with the RCF.

We are analyzing the tcpdump captures and httpwatch.

Until this moment we identify one beahvior. content-disposition there is special characteres like example:

content-disposition= attachement;filename=FILE_teste_01/01/2001 10:08:01.xlsx;size=196...

Probably these special characters in content that is not compliant with RFC2616.

if that behavior can not be corrected the application side, can I solve that with some irule? irule Replace content can resolve? If someone can quote some example that would answer

thank you very much