Fix YaCy text results returned as images

searx/engines/yacy.py

@@ -75,7 +75,7 @@ def response(resp):
 
     for result in search_results[0].get('items', []):
         # parse image results
-        if result.get('image'):
+        if result.get('image') and result.get('width') and result.get('height'):
 
             result_url = ''
             if 'url' in result: