Currently we as a Partner often get reports from clients that when linking to a category page, the page is empty.
That is because the page interprets all query parameters as filters.
Various mail platforms, advertisement platforms etc often add a tracking parameter to links and that causes the error. The code can handle a few common parameters but new ones result in an empty page.
The litium accelerator code should handle this better so that all parameters that are not product fields don't affect the page.