Greetings Monks,
I've just adopted a perl CMS abandoned on SF. While it's a bit "legacy", it's fairly advanced, in spite of it - think AMC Gremlin. :)
Anyway, since I've found my way back to perl from PHP, I'm finding situations I hadn't had to deal with in Perl, that I can't seem to figure a good solution for. In an attempt to generate well-formed application/xhtml+xml documents, but still not cause legacy browsers to prompt to download the document, I used the following in PHP 
<?php header("Vary: Accept");
if (stristr($_SERVER["HTTP_ACCEPT"], "application/xhtml+xml")) 
 header("Content-Type: application/xhtml+xml; charset=utf-8");
else
 header("Content-Type: text/html; charset=utf-8");

[download]
This way, modern UA's recieved the document as intended, and legacy UA's got "tag soup".
For the life of me, I can not figure the equivalent for perl. Would any of you kind, brilliant Monks be willing to point me in the right direction. : ))

Thank you very much for all your time and consideration.
Apologies if it seems I rambled.
--
use qw(:perl:always);
use qw(:perlmonks:daily);

In reply to well formed XHTML != tag soup by CamelDung

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