Fixed #35703 -- Made technical_404_response() respect SCRIPT_NAME to return default_urlconf().

django/views/debug.py

@@ -620,7 +620,7 @@ def technical_404_response(request, exception):
     else:
         resolved = False
         if not tried or (  # empty URLconf
-            request.path == "/"
+            request.path_info == "/"
             and len(tried) == 1
             and len(tried[0]) == 1  # default URLconf
             and getattr(tried[0][0], "app_name", "")

tests/view_tests/tests/test_debug.py

@@ -398,6 +398,15 @@ class DebugViewTests(SimpleTestCase):
             response, "<h1>The install worked successfully! Congratulations!</h1>"
         )
 
+    @override_settings(
+        ROOT_URLCONF="view_tests.default_urls", FORCE_SCRIPT_NAME="/FORCED_PREFIX"
+    )
+    def test_default_urlconf_script_name(self):
+        response = self.client.request(**{"path": "/FORCED_PREFIX/"})
+        self.assertContains(
+            response, "<h1>The install worked successfully! Congratulations!</h1>"
+        )
+
     @override_settings(ROOT_URLCONF="view_tests.regression_21530_urls")
     def test_regression_21530(self):
         """