diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index 80ebd1fb..792bf03a 100644
--- a/httprunner/__about__.py
+++ b/httprunner/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'HttpRunner'
 __description__ = 'One-stop solution for HTTP(S) testing.'
 __url__ = 'https://github.com/HttpRunner/HttpRunner'
-__version__ = '1.5.1'
+__version__ = '1.5.2'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'MIT'
diff --git a/httprunner/task.py b/httprunner/task.py
index 62bce835..965132c9 100644
--- a/httprunner/task.py
+++ b/httprunner/task.py
@@ -151,7 +151,10 @@ class TestSuite(unittest.TestSuite):
             if not out:
                 continue
 
-            in_out = {"in": variables, "out": out}
+            in_out = {
+                "in": variables or {},
+                "out": out
+            }
             if in_out not in outputs:
                 outputs.append(in_out)
 
diff --git a/httprunner/templates/default_report_template.html b/httprunner/templates/default_report_template.html
index a2ddcd22..e72587b0 100644
--- a/httprunner/templates/default_report_template.html
+++ b/httprunner/templates/default_report_template.html
@@ -187,10 +187,35 @@
   {% for test_suite_summary in details %}
   {% set suite_index = loop.index %}
   <h3>{{test_suite_summary.name}}</h3>
-    <table class="details">
+    <table id="suite_{{suite_index}}" class="details">
       <tr>
         <th>base_url</th>
-        <td colspan="4">{{test_suite_summary.base_url}}</td>
+        <td colspan="2">{{test_suite_summary.base_url}}</td>
+        <th colspan="2" class="detail">
+          <a class="button" href="#suite_output_{{suite_index}}">parameters & output</a>
+          <div id="suite_output_{{suite_index}}" class="overlay">
+              <div class="popup">
+                  <h2>Parameters and Output</h2>
+                  <a class="close" href="#suite_{{suite_index}}">&times;</a>
+                  <div class="content">
+                    <div style="overflow: auto">
+                        <table>
+                          <tr>
+                            <th>variables</th>
+                            <th>output</th>
+                          </tr>
+                          {% for in_out in test_suite_summary.output %}
+                          <tr>
+                            <td>{{in_out.in}}</td>
+                            <td>{{in_out.out}}</td>
+                          </tr>
+                          {% endfor %}
+                        </table>
+                    </div>
+                  </div>
+              </div>
+          </div>
+        </td>
       </tr>
       <tr>
         <td>TOTAL: {{test_suite_summary.stat.testsRun}}</td>