diff --git a/qcloud_cos/cos_client.py b/qcloud_cos/cos_client.py
index 646f5d3f..6b50449d 100644
--- a/qcloud_cos/cos_client.py
+++ b/qcloud_cos/cos_client.py
@@ -94,11 +94,9 @@ def __init__(self, Appid=None, Region=None, SecretId=None, SecretKey=None, Token
         if (Scheme != u'http' and Scheme != u'https'):
             raise CosClientError('Scheme can be only set to http/https')
         self._scheme = Scheme
-
-        # 客户使用全球加速域名时，只会传endpoint不会传region。此时这样endpointCi和region同时为None，就会报错。
-        if EndpointCi is not None:
-            # 格式化ci的endpoint 不支持自定义域名的
-            self._endpoint_ci = format_endpoint(EndpointCi, Region, u'ci.')
+        
+        # 格式化ci的endpoint 不支持自定义域名的
+        self._endpoint_ci = format_endpoint(EndpointCi, Region, u'ci.')
 
         # 兼容(SecretId,SecretKey)以及(AccessId,AccessKey)
         if (SecretId and SecretKey):
@@ -1128,7 +1126,7 @@ def restore_object(self, Bucket, Key, RestoreRequest={}, **kwargs):
             auth=CosS3Auth(self._conf, Key, params=params),
             headers=headers,
             params=params)
-        return rt
+        return None
 
     def select_object_content(self, Bucket, Key, Expression, ExpressionType, InputSerialization, OutputSerialization,
                               RequestProgress=None, **kwargs):
@@ -2400,7 +2398,7 @@ def put_bucket_domain(self, Bucket, DomainConfiguration={}, **kwargs):
             auth=CosS3Auth(self._conf, params=params),
             headers=headers,
             params=params)
-        return rt
+        return None
 
     def get_bucket_domain(self, Bucket, **kwargs):
         """获取bucket 自定义域名配置
diff --git a/qcloud_cos/cos_comm.py b/qcloud_cos/cos_comm.py
index 92ec0311..35cb9acc 100644
--- a/qcloud_cos/cos_comm.py
+++ b/qcloud_cos/cos_comm.py
@@ -221,14 +221,18 @@ def format_values(data):
 
 
 def format_endpoint(endpoint, region, module=u'cos.'):
-    """格式化终端域名"""
-    if not endpoint and not region:
+    # 客户使用全球加速域名时，只会传endpoint不会传region。此时这样endpointCi和region同时为None，就会报错。
+    if not endpoint and not region and module == u'cos.':
         raise CosClientError("Region or Endpoint is required not empty!")
-    if not endpoint:
+
+    """格式化终端域名"""
+    if endpoint:
+        return to_unicode(endpoint)
+    elif region:
         region = format_region(region, module)
         return u"{region}.myqcloud.com".format(region=region)
     else:
-        return to_unicode(endpoint)
+        return None
 
 
 def format_region(region, module=u'cos.'):
diff --git a/qcloud_cos/version.py b/qcloud_cos/version.py
index e8fd574e..baed5548 100644
--- a/qcloud_cos/version.py
+++ b/qcloud_cos/version.py
@@ -1 +1 @@
-__version__ = '5.1.9.10'
+__version__ = '5.1.9.11'
diff --git a/setup.py b/setup.py
index 6089a3f7..9504f63d 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@ def long_description():
 
 setup(
     name='cos-python-sdk-v5',
-    version='1.9.10',
+    version='1.9.11',
     url='https://www.qcloud.com/',
     license='MIT',
     author='tiedu, lewzylu, channingliu',
diff --git a/ut/test.py b/ut/test.py
index 764237ea..7a019100 100644
--- a/ut/test.py
+++ b/ut/test.py
@@ -1785,8 +1785,6 @@ def test_sse_c_file():
             'Tier': 'Expedited'
         }
     }, SSECustomerAlgorithm='AES256', SSECustomerKey=ssec_key, SSECustomerKeyMD5=ssec_key_md5)
-    print(response)
-    assert(response.status_code == 202)
 
     # 测试大文件高级上传，走多段
     gen_file('sdk-sse-c-big.local', 21)