More checks on user agent browsers

utils.py

@@ -4116,6 +4116,16 @@ def check_mixed_user_agent(ua_str: str):
         if client_ua in ua_str:
             matching_agents.append(client_ua)
     if len(matching_agents) > 1:
+        if len(matching_agents) == 2:
+            if matching_agents[0] == 'Mozilla':
+                # Safari browser oddly starts with Mozilla
+                # https://www.useragentstring.com/pages/Safari
+                if matching_agents[1] == 'Safari':
+                    return False
+                # Chrome browser oddly starts with Mozilla
+                # https://www.useragentstring.com/pages/Chrome
+                if matching_agents[1] == 'Chrome':
+                    return False
         return True
     return False