Persist url params

This module helps to keep url params when submitting views exposed filters.

Views exposed filters are implemented using GET so the filtered results are bookmarkable.

The problem arises when there are already other arguments in the url that filters the results but that doesn't come from exposed filters, like when using Search API facets blocks.

This module alters the exposed filter form by adding hidden fields with the values from other params existing in the url, so when the form is submitted you don't lose the previous filtering.

See:
* http://drupal.org/node/1254156