[wp-trac] [WordPress Trac] #36334: Custom RSS feed has wrong MIME type and forces download in browser

[WordPress Trac]

#36334: Custom RSS feed has wrong MIME type and forces download in browser
--------------------------+-----------------------------
 Reporter:  Missilesilo   |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Feeds         |    Version:  4.4.2
 Severity:  normal        |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 When adding a custom RSS feed using add_feed(), the resulting feed is
 transferred to the document with the wrong MIME type and forces a
 download. Built in feeds behave properly.


 {{{
 <?php

 add_action('init', 'customRSS');
 function customRSS(){
         add_feed('feedname', 'customRSSFunc');
 }

 function customRSSFunc(){
         echo 'say anything';
         // get_template_part('rss', 'feedname');
 }
 ?>
 }}}

 Navigating to http://wordpress.dev/feed/feedname/ results in forced
 download and console message:

 {{{
 Resource interpreted as Document but transferred with MIME type
 application/octet-stream: "http://wordpress.dev/feed/feedname/".
 }}}

 This occurs on a fresh install of WordPress 4.4.2 with no added plugins.
 The above code is the only contents of functions.php in a child theme of
 Twenty Sixteen. Browser/OS is Google Chrome 48.0.2564.116 (64-bit) on Mac
 OSX 10.11.3. Test website is running on a local Vagrant/VirtualBox server.

--
Ticket URL: <https://core.trac.wordpress.org/ticket/36334>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform