some small extra checks

changedetectionio/__init__.py

@@ -1208,8 +1208,7 @@ def changedetection_app(config=None, datastore_o=None):
             # These files should be in our subdirectory
             try:
                 # set nocache, set content-type
-                watch_dir = datastore_o.datastore_path + "/" + filename
-                response = make_response(send_from_directory(filename="elements.json", directory=watch_dir, path=watch_dir + "/elements.json"))
+                response = make_response(send_from_directory(os.path.join(datastore_o.datastore_path, filename), "elements.json"))
                 response.headers['Content-type'] = 'application/json'
                 response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate'
                 response.headers['Pragma'] = 'no-cache'

changedetectionio/tests/visualselector/test_fetch_data.py

@@ -54,6 +54,13 @@ def test_visual_selector_content_ready(client, live_server):
     with open(os.path.join('test-datastore', uuid, 'elements.json'), 'r') as f:
         json.load(f)
 
+    # Attempt to fetch it via the web hook that the browser would use
+    res = client.get(url_for('static_content', group='visual_selector_data', filename=uuid))
+    json.loads(res.data)
+    assert res.mimetype == 'application/json'
+    assert res.status_code == 200
+
+
     # Some options should be enabled
     # @todo - in the future, the visibility should be toggled by JS from the request type setting
     res = client.get(