We are attempting to build dashboard portlet (A) with parameter links (navigation & filtering) to another portlet (B). Unfortunately, we’ve discovered that, if a user has previously visited portlet B and applied a filter, the filter is maintained when s/he follows that link from portlet A. This results in two sets of filters being applied to portlet B: the filter criteria from the portlet A link (in the URL), and the filter criteria from a previous visit to portlet B (in the portlet filters). Clicking the Clear button will remove the filter criteria from portlet B and show the correctly filtered data (based on the URL filters provided by the link from portlet A), but we’d like to save our users the step. Is there a way to clear a user’s cached filter selections on a portlet that we can use to implement our parameter links?