diff --git a/.travis.yml b/.travis.yml
index 8cb6774a..663617fe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,7 +18,8 @@ deploy:
   provider: pypi
   distributions: sdist bdist_wheel
   user: dt3310321
-  password: *********
+  password:
+    secure: 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
   on:
     tags: true
     branch: master
diff --git a/qcloud_cos/cos_auth.py b/qcloud_cos/cos_auth.py
index 96f6eaa2..f5c75479 100644
--- a/qcloud_cos/cos_auth.py
+++ b/qcloud_cos/cos_auth.py
@@ -50,7 +50,7 @@ def __call__(self, r):
         format_str = u"{method}\n{host}\n{params}\n{headers}\n".format(
             method=r.method.lower(),
             host=path,
-            params=urlencode(sorted(uri_params.items())).replace('+', '%20'),
+            params=urlencode(sorted(uri_params.items())).replace('+', '%20').replace('%7E', '~'),
             headers='&'.join(map(lambda tupl: "%s=%s" % (tupl[0], tupl[1]), sorted(headers.items())))
         )
         logger.debug("format str: " + format_str)
diff --git a/qcloud_cos/cos_client.py b/qcloud_cos/cos_client.py
index 9743debb..5cd81de0 100644
--- a/qcloud_cos/cos_client.py
+++ b/qcloud_cos/cos_client.py
@@ -185,8 +185,10 @@ def send_request(self, method, url, timeout=30, **kwargs):
                 info['code'] = 'NoSuchResource'
                 info['message'] = 'The Resource You Head Not Exist'
                 info['resource'] = url
-                info['requestid'] = res.headers['x-cos-request-id']
-                info['traceid'] = res.headers['x-cos-trace-id']
+                if 'x-cos-request-id' in res.headers:
+                    info['requestid'] = res.headers['x-cos-request-id']
+                if 'x-cos-trace-id' in res.headers:
+                    info['traceid'] = res.headers['x-cos-trace-id']
                 logger.error(info)
                 raise CosServiceError(method, info, res.status_code)
             else:
diff --git a/qcloud_cos/cos_comm.py b/qcloud_cos/cos_comm.py
index 93e8833c..d1d30a45 100644
--- a/qcloud_cos/cos_comm.py
+++ b/qcloud_cos/cos_comm.py
@@ -146,6 +146,7 @@ def xml_to_dict(data, origin_str="", replace_str=""):
     xmlstr = xmlstr.replace("{http://www.qcloud.com/document/product/436/7751}", "")
     xmlstr = xmlstr.replace("{https://cloud.tencent.com/document/product/436}", "")
     xmlstr = xmlstr.replace("{http://doc.s3.amazonaws.com/2006-03-01}", "")
+    xmlstr = xmlstr.replace("{http://s3.amazonaws.com/doc/2006-03-01/}", "")
     xmlstr = xmlstr.replace("{http://www.w3.org/2001/XMLSchema-instance}", "")
     if origin_str:
         xmlstr = xmlstr.replace(origin_str, replace_str)
diff --git a/qcloud_cos/cos_exception.py b/qcloud_cos/cos_exception.py
index bb8c2dea..c6f08411 100644
--- a/qcloud_cos/cos_exception.py
+++ b/qcloud_cos/cos_exception.py
@@ -27,7 +27,10 @@ def digest_xml(data):
         msg['requestid'] = result[0].childNodes[0].nodeValue
 
         result = root.getElementsByTagName('TraceId')
-        msg['traceid'] = result[0].childNodes[0].nodeValue
+        if result:
+            msg['traceid'] = result[0].childNodes[0].nodeValue
+        else:
+            msg['traceid'] = 'Unknown'
         return msg
     except Exception as e:
         return "Response Error Msg Is INVALID"