diff --git a/searx/results.py b/searx/results.py
index cb204a682fe23d6c688c85fadc545eb454efa7c5..ab1c83e198ea89eb278ee236553cb4ff5b8e47c9 100644
--- a/searx/results.py
+++ b/searx/results.py
@@ -203,14 +203,14 @@ class ResultContainer(object):
             result['parsed_url'] = result['parsed_url']._replace(scheme="http")
             result['url'] = result['parsed_url'].geturl()
 
-        result['engines'] = set([result['engine']])
+        result['engines'] = [result['engine']]
 
         # strip multiple spaces and cariage returns from content
         if result.get('content'):
             result['content'] = WHITESPACE_REGEX.sub(' ', result['content'])
 
         # check for duplicates
-        duplicated = False
+        duplicated = None
         for merged_result in self._merged_results:
             if compare_urls(result['parsed_url'], merged_result['parsed_url'])\
                and result.get('template') == merged_result.get('template'):
@@ -233,7 +233,8 @@ class ResultContainer(object):
             duplicated['positions'].append(position)
 
             # add engine to list of result-engines
-            duplicated['engines'].add(result['engine'])
+            if result['engine'] not in duplicated['engines']:
+                duplicated['engines'].append(result['engine'])
 
             # using https if possible
             if duplicated['parsed_url'].scheme != 'https' and result['parsed_url'].scheme == 'https':
diff --git a/searx/search_database.py b/searx/search_database.py
index f2267ef84d4b9da2c7fda69871eed9f3cee44202..fea98d5f9e2b8cceb8ba2fb8d786b9dbc9cfb9f7 100644
--- a/searx/search_database.py
+++ b/searx/search_database.py
@@ -118,9 +118,6 @@ def get_search_data(q, r):
         results_number = 0
     results = r.get_ordered_results()
     for result in results:
-        result['engines'] = list(result['engines'])
-        if not type(result['engines']) is list:
-            print(result['engines'])
         if 'publishedDate' in result:
             try:
                 result['pubdate'] = result['publishedDate'].strftime('%Y-%m-%d %H:%M:%S')
diff --git a/searx/webapp.py b/searx/webapp.py
index aad67777efc5ee9e70ce75ea80f7568d9393c2ae..6285f2117cbbcded285ead1a9bfb2c1b1dc1f9d6 100644
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -46,7 +46,7 @@ except:
     from sys import exit
 
     exit(1)
-from cgi import escape
+from html import escape
 from datetime import datetime, timedelta
 from werkzeug.contrib.fixers import ProxyFix
 from flask import (
@@ -486,8 +486,6 @@ def index():
     # search
     search_data = None
     try:
-        print(request.form)
-
         if is_general_first_page:
             request.form['categories'] = ['general', 'videos', 'images']
         else: