From 1b8cec25a7b334d0bf1b0635f50a8598c7eccede Mon Sep 17 00:00:00 2001
From: Joseph Cheung <luxtiasco@outlook.com>
Date: Sun, 12 Mar 2023 19:16:34 +0800
Subject: [PATCH] n

---
 searx/engines/arxiv.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/searx/engines/arxiv.py b/searx/engines/arxiv.py
index a4811ebd5..956c8fc22 100644
--- a/searx/engines/arxiv.py
+++ b/searx/engines/arxiv.py
@@ -18,7 +18,7 @@ about = {
     "results": 'XML-RSS',
 }
 
-categories = ['science', 'scientific publications']
+categories = ['general', 'science', 'scientific publications']
 paging = True
 
 base_url = (
@@ -101,7 +101,7 @@ def response(resp):
             'journal': journal,
             'tags': tags,
             'comments': comments,
-            'pdf_url': pdf_url,
+            'pdf_url': pdf_url.replace("http://","https://"),
         }
 
         results.append(res_dict)