Return proper content type for data and meta endpoints

Author: Jan-M

tscached/handler_general.py

@@ -73,4 +73,4 @@ def handle_query():
         elif cache_mode != overall_cache_mode:
             overall_cache_mode = 'mixed'
 
-    return json.dumps(ret_data), 200, {'X-tscached-mode': overall_cache_mode}
+    return json.dumps(ret_data), 200, {'Content-Type': 'application/json', 'X-tscached-mode': overall_cache_mode}

tscached/handler_meta.py

@@ -73,7 +73,7 @@ def metadata_caching(config, name, endpoint, post_data=None):
                 # Eat the Redis exception - turns these endpoints into straight proxies.
                 logging.error('RedisError: ' + e.message)
 
-        return kairos_result.text, kairos_result.status_code
+        return kairos_result.text, kairos_result.status_code, {'Content-Type': 'application/json'}
 
 
 @app.route('/api/v1/metricnames', methods=['GET'])