diff --git a/roles/php_website/molecule/default/tests/test_parameters_optional.py b/roles/php_website/molecule/default/tests/test_parameters_optional.py
index f838838ac419a5a3e7be6d7a3154b39047faee09..9a992d7085d9f87ec3f113905b0afa34b7e51afb 100644
--- a/roles/php_website/molecule/default/tests/test_parameters_optional.py
+++ b/roles/php_website/molecule/default/tests/test_parameters_optional.py
@@ -270,3 +270,15 @@ def test_regular_rewrites(host):
 
     assert page.rc == 0
     assert page.stdout == open("tests/data/php/optional/myindex.php").read().rstrip()
+
+
+def test_http_header_overrides(host):
+    """
+    Tests if headers are overridden by Nginx prior to hitting the PHP
+    application.
+    """
+
+    page = host.run('curl -H "Accept-Encoding: plain" https://parameters-optional.local/headers.myphp')
+
+    assert page.rc == 0
+    assert "Accept-Encoding: donotencode" in page.stdout.split("\n")