Thread:Extension talk:RSS/RSS does not accept results of Semantic Mediawiki query (2)/reply (12)

Hi, afaik there is no alternate parser tag syntax for Extension:RSS. I have exactly the same as described above: If some parameters in the feed-url are queried dynamically (e.g. by a SMW query) the extension throws "Error: Not a valid URL" while the url with parameters passed directly works fine. I guess this is due to the handling of whitespaces or special characters, however, I cannot see the causes. Thanks!