Support multipart HTML5 forms

services/api-server/tests/test_api.py

@@ -484,6 +484,26 @@ def test_html5_project_index_creates_project_with_fragment():
     assert deleted_setup.json()["status"] == "NOT_CONFIGURED"
 
 
+def test_html5_project_create_accepts_multipart_browser_form():
+    client = TestClient(app)
+    project_id = f"html5-multipart-{uuid4()}"
+
+    created = client.post(
+        "/html5/projects",
+        files={
+            "project_id": (None, project_id),
+            "name": (None, "HTML5 Multipart"),
+        },
+    )
+
+    assert created.status_code == 200
+    assert_html5_response_contract(created, project_id, "HTML5 Multipart")
+
+    setup = client.get(f"/html5/projects/{project_id}/setup")
+    assert setup.status_code == 200
+    assert_html5_response_contract(setup, "data-html5-page=\"setup\"", "HTML5 Multipart", full_page=True)
+
+
 def test_html5_object_context_fragment(tmp_path: Path):
     project_id = f"html5-object-context-{uuid4()}"
     (tmp_path / "metadata.xml").write_text(