diff --git a/httprunner/client.py b/httprunner/client.py
index d5b76477..a94c20e0 100644
--- a/httprunner/client.py
+++ b/httprunner/client.py
@@ -113,12 +113,16 @@ class HttpSession(requests.Session):
         self.meta_data["request_body"] = response.request.body
         self.meta_data["status_code"] = response.status_code
         self.meta_data["response_headers"] = response.headers
-        self.meta_data["response_content"] = response.content
+
+        try:
+            self.meta_data["response_body"] = response.json()
+        except ValueError:
+            self.meta_data["response_body"] = response.content
 
         msg = "response details:\n"
         msg += "> status_code: {}\n".format(self.meta_data["status_code"])
         msg += "> headers: {}\n".format(self.meta_data["response_headers"])
-        msg += "> content: {}".format(self.meta_data["response_content"])
+        msg += "> body: {}".format(self.meta_data["response_body"])
         logger.log_debug(msg)
 
         # get the length of the content, but if the argument stream is set to True, we take
diff --git a/httprunner/report.py b/httprunner/report.py
index 870ad5ab..d8dcbb71 100644
--- a/httprunner/report.py
+++ b/httprunner/report.py
@@ -5,11 +5,12 @@ import os
 import platform
 import time
 import unittest
+from collections import Iterable
 from datetime import datetime
 
 from httprunner import logger
 from httprunner.__about__ import __version__
-from httprunner.compat import basestring, bytes, numeric_types
+from httprunner.compat import basestring, bytes, json, numeric_types
 from jinja2 import Template
 from requests.structures import CaseInsensitiveDict
 
@@ -62,13 +63,13 @@ def make_json_serializable(raw_json):
             value = value.decode("utf-8")
         elif isinstance(value, CaseInsensitiveDict):
             value = dict(value)
-        elif not isinstance(value, (basestring, numeric_types)):
+        elif not isinstance(value, (basestring, numeric_types, Iterable)):
             # class instance, e.g. MultipartEncoder()
             value = repr(value)
 
         serializable_json[key] = value
 
-    return serializable_json
+    return json.dumps(serializable_json, indent=2, ensure_ascii=False)
 
 
 class HtmlTestResult(unittest.TextTestResult):
diff --git a/httprunner/templates/default_report_template.html b/httprunner/templates/default_report_template.html
index cd4413f3..d5841214 100644
--- a/httprunner/templates/default_report_template.html
+++ b/httprunner/templates/default_report_template.html
@@ -188,7 +188,7 @@
               <div class="popup">
                 <h2>Request and Response data</h2>
                 <a class="close" href="#">&times;</a>
-                <div class="content"><pre>{{ record.meta_data | tojson(indent=2) | safe }}</pre></div>
+                <div class="content"><pre>{{ record.meta_data | safe }}</pre></div>
               </div>
             </div>