Fix content-disposition handling - add test

tests/test_downloader.py

@@ -13,6 +13,7 @@
 import pytest
 
 from multiurl import Downloader, download
+from multiurl.http import FullHTTPDownloader
 
 
 def test_http():
@@ -77,6 +78,18 @@ def test_order():
         assert f.read()[:4] == b"BUFR"
 
 
+def test_content_disposition_handling():
+    class TestDownloader(FullHTTPDownloader):
+        def headers(self):
+            headers = super().headers()
+            headers["content-disposition"] = 'attachment; filename="temp.bufr"'
+            return headers
+
+    TestDownloader(
+        url="http://get.ecmwf.int/test-data/metview/gallery/temp.bufr",
+    ).download(target="out")
+
+
 @pytest.mark.skip(reason="ftpserver not defined")
 def test_ftp_download(tmp_path, ftpserver):
     local_test_file = os.path.join(tmp_path, "testfile.txt")