diff --git a/tests/mock_server/server.py b/tests/mock_server/server.py
index 3bf1fe29..c819267c 100644
--- a/tests/mock_server/server.py
+++ b/tests/mock_server/server.py
@@ -2,7 +2,7 @@ from os.path import abspath
 from os import getcwd
 from pathlib import Path
 
-from bottle import route, run, static_file
+from bottle import route, run, static_file, response
 
 @route("/")
 def index():
@@ -21,5 +21,14 @@ def static_no_content_type(filename):
     response.set_header("Content-Type", "")
     return response
 
+@route("/static/headers/<filename>")
+def static_path_with_headers(filename):
+    template_path = abspath(getcwd()) / Path("tests/mock_server/templates")
+    response = static_file(filename, root=template_path)
+    response.add_header("Content-Language", "en")
+    response.add_header("Content-Script-Type", "text/javascript")
+    response.add_header("Content-Style-Type", "text/css")
+    return response
+
 def start():
     run(host='localhost', port=8080)
\ No newline at end of file
diff --git a/tests/test_extractors.py b/tests/test_extractors.py
index 18c1b28e..24b750ed 100644
--- a/tests/test_extractors.py
+++ b/tests/test_extractors.py
@@ -1,4 +1,5 @@
 from .fixtures import *
+import json as pyjson
 from archivebox.extractors import ignore_methods, get_default_archive_methods, should_save_title
 
 def test_wget_broken_pipe(tmp_path, process, disable_extractors_dict):
@@ -71,8 +72,14 @@ def test_use_node_false_disables_readability_and_singlefile(tmp_path, process, d
     assert "> readability" not in output_str
 
 def test_headers(tmp_path, process, disable_extractors_dict):
-    add_process = subprocess.run(['archivebox', 'add', 'http://127.0.0.1:8080/static/example.com.html'],
+    add_process = subprocess.run(['archivebox', 'add', 'http://127.0.0.1:8080/static/headers/example.com.html'],
                                   capture_output=True, env=disable_extractors_dict)
     archived_item_path = list(tmp_path.glob("archive/**/*"))[0]
     output_file = archived_item_path / "headers.json"
-    assert output_file.exists()
\ No newline at end of file
+    assert output_file.exists()
+    headers_file = archived_item_path / 'headers.json'
+    with open(headers_file) as f:
+        headers = pyjson.load(f)
+    assert headers['Content-Language'] == 'en'
+    assert headers['Content-Script-Type'] == 'text/javascript'
+    assert headers['Content-Style-Type'] == 'text/css'