[IMPALA-7387] Set appropriate MIME type for JSON web pages

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Impala 3.1.0
• Fix Version/s: Impala 3.1.0
• Component/s: Backend
• Epic Color: ghx-label-7
• Assignee: Bharath Vissapragada
• Reporter: Bharath Vissapragada
• Created: 02/Aug/18 05:57
• Updated: 06/Aug/18 17:14
• Resolved: 06/Aug/18 17:14

Description

Currently, Impala renders the pages with content-type set to text/plain for JSON output. 

It should be "application/json" as per RFC 4627.