avoid error in templating error

awx/main/tests/unit/api/test_views.py

@@ -16,6 +16,9 @@ from awx.api.views import (
 from awx.main.models import (
     Host,
 )
+from awx.main.views import handle_error
+
+from rest_framework.test import APIRequestFactory
 
 
 @pytest.fixture
@@ -25,6 +28,12 @@ def mock_response_new(mocker):
     return m
 
 
+def test_handle_error():
+    # Assure that templating of error does not raise errors
+    request = APIRequestFactory().get('/fooooo/')
+    handle_error(request)
+
+
 class TestApiRootView:
     def test_get_endpoints(self, mocker, mock_response_new):
         endpoints = [

awx/templates/rest_framework/base.html

@@ -157,8 +157,8 @@
               </div>
 
               <div class="response-info" aria-label="{% trans "response info" %}">
-                <pre class="prettyprint"><span class="meta nocode"><b>HTTP {{ response.status_code }} {{ response.status_text }}</b>{% autoescape off %}{% for key, val in response_headers|items %}
+                <pre class="prettyprint"><span class="meta nocode"><b>HTTP {{ response.status_code }} {{ response.status_text }}</b>{% autoescape off %}{% if response_headers %}{% for key, val in response_headers|items %}
-<b>{{ key }}:</b> <span class="lit">{{ val|break_long_headers|urlize_quoted_links }}</span>{% endfor %}
+<b>{{ key }}:</b> <span class="lit">{{ val|break_long_headers|urlize_quoted_links }}</span>{% endfor %}{% endif %}
 {# Original line below had the side effect of also escaping content: #}
 {#   </span>{{ content|urlize_quoted_links }}</pre>{% endautoescape %}   #}
 {# For AWX, disable automatic URL creation and move content outside of autoescape off block. #}