Incorrect header::contentType on sitemap

[bnomei]

you need to use a new way to send headers in kirby3.

Sending custom status headers

I just remembered a change during the latest K3 betas. Bastian posted on Slack: In order to fix this once and for all I’ve come up with a way to configure the response in your controllers or templates and cache that configuration with the page. This new implementation has a lot of nice side effects. Here’s how it looks like in a controller for example if you want to change the content type, the response code and set some headers. $kirby ->response() ->code(202) ->type('rss') …