Set XHR response MimeType to 'text/xml'.

- If the MimeType of the DASH presentation returned from the
  server is not 'text/xml' then responseXML would be NULL.

Change-Id: Ic863ea51aa6a48a993ccc0c37ecb8c26ec114b3f
1 file changed
tree: b5aec5a93616a57c21ac067c7a25d7d9df430b4b
  1. adaptive/
  2. basic/
  3. shared/