CDN module error with Media module

This may be related to http://drupal.org/node/1922962

Vanilla Drupal 7.20 site, with the following modules enabled:

 Package           Name                                   Version
 Administration    Administration menu (admin_menu)       7.x-3.0-rc4
 Chaos tool suite  Chaos tools (ctools)                   7.x-1.2
 Core              Block (block)                          7.20
 Core              Database logging (dblog)               7.20
 Core              Field (field)                          7.20
 Core              Field SQL storage (field_sql_storage)  7.20
 Core              Field UI (field_ui)                    7.20
 Core              File (file)                            7.20
 Core              Filter (filter)                        7.20
 Core              Image (image)                          7.20
 Core              Node (node)                            7.20
 Core              System (system)                        7.20
 Core              Text (text)                            7.20
 Core              Update manager (update)                7.20
 Core              User (user)                            7.20
 Development       Devel (devel)                          7.x-1.3
 Media             File entity (file_entity)              7.x-2.0-unstable7
 Media             Media (media)                          7.x-2.0-unstable7
 Media             Media Internet Sources                 7.x-2.0-unstable7
                   (media_internet)
 Media             Media: YouTube (media_youtube)         7.x-2.0-rc2
 Other             Job Scheduler (job_scheduler)          7.x-2.0-alpha3
 Other             Module filter (module_filter)          7.x-1.7
 Performance and   CDN (cdn)                              7.x-2.5+13-dev
 scalability
 Views             Views (views)                          7.x-3.5

With the CDN module enabled, but with disabled status, I can save youtube videos as expected.

When I enable serving files via the CDN module, (origin pull, everything else default settings), and I try to save a youtube URL, I get the following error message:
Exception: Error Processing Request. (Error: 404, Not Found) in MediaInternetYouTubeHandler->getOEmbed() (line 116 of /sites/all/modules/media_youtube/includes/MediaInternetYouTubeHandler.inc).

That function, for reference is:

  /**
   * Returns information about the media. See http://www.oembed.com/.
   *
   * @return
   *   If oEmbed information is available, an array containing 'title', 'type',
   *   'url', and other information as specified by the oEmbed standard.
   *   Otherwise, NULL.
   */
  public function getOEmbed() {
    $uri = $this->parse($this->embedCode);
    $external_url = file_create_url($uri);
    $oembed_url = url('http://www.youtube.com/oembed', array('query' => array('url' => $external_url, 'format' => 'json')));
    $response = drupal_http_request($oembed_url);
    if (!isset($response->error)) {
      return drupal_json_decode($response->data);
    }
    else {
      throw new Exception("Error Processing Request. (Error: {$response->code}, {$response->error})");
      return;
    }
  }

I suspect this has to do with the file_create_url function conflicting with the file URL rewriting of the CDN module. What other information can I provide to flesh out presumed bug report? Or is there a config setting that would allow me to bypass this?