Use the view base URL for the exposed filters form action

Problem/Motivation

Better Exposed Filters mistakes the current path for the View's base path when a view is configured to include filters as part of the path, as is possible with Facets Pretty Paths → .

Steps to reproduce

Configure Facets Pretty Paths on a view using Facets 3.x, such that facets are now shown at a path such as /view-page-name/category/foo-258.

When trying to remove the last facet or press the clear facets button, rather than going to the path /view-page-name it goes to the whole path, which means the filter stays applied.

Proposed resolution

BetterExposedFiltersWidgetBase::getExposedFormActionUrl() should get its URL from the view page rather than the current request. This should fix BEF when using with Facets Pretty Paths configured without query strings.

See chrisolof's comment on Facets Pretty Paths Support facets 3.x facets exposed filters, https://www.drupal.org/project/facets_pretty_paths/issues/3505618#commen... ✨ Support facets 3.x facets exposed filters Active

Remaining tasks

User interface changes

API changes

Data model changes