diff --git a/DrissionPage/configs/chromium_options.py b/DrissionPage/configs/chromium_options.py
index 7a6b0f5..6f32d90 100644
--- a/DrissionPage/configs/chromium_options.py
+++ b/DrissionPage/configs/chromium_options.py
@@ -146,8 +146,11 @@ class ChromiumOptions(object):
         """
         self.remove_argument(arg)
         if value is not False:
-            arg_str = arg if value is None else f'{arg}={value}'
-            self._arguments.append(arg_str)
+            if arg == '--headless' and value is None:
+                self._arguments.append('--headless=new')
+            else:
+                arg_str = arg if value is None else f'{arg}={value}'
+                self._arguments.append(arg_str)
         return self
 
     def remove_argument(self, value):
diff --git a/DrissionPage/session_page.py b/DrissionPage/session_page.py
index 738d9a4..7e07aa7 100644
--- a/DrissionPage/session_page.py
+++ b/DrissionPage/session_page.py
@@ -316,7 +316,7 @@ def set_charset(response):
     content_type = response.headers.get('content-type', '').lower()
     if not content_type.endswith(';'):
         content_type += ';'
-    charset = search(r'charset[=: ]*(.*)?;', content_type)
+    charset = search(r'charset[=: ]*(.*)?;?', content_type)
 
     if charset:
         response.encoding = charset.group(1)