By catch on
Change record status:
Published (View all published change records)
Project:
Introduced in branch:
8.1.x
Introduced in version:
8.1.1
Issue links:
Description:
Certain use cases, such as breadcrumbs, require caching by a path's parent.
For example /admin/config/development/performance and /admin/config/development/testing both have a breadcrumb of Home > Administration > Configuration > Development.
The url.path.parent cache context allows the cache ID part to be resolved to 'admin/config/development' instead of the full path, leading to fewer cache entries and higher cache hit rates, and should be used instead of url.path where possible.
Impacts:
Module developers
