manifest on html is obsolete Web Standard

Description

The manifest attribute on the html element is obsolete.

Help

The manifest-based application cache feature is obsolete. Consider using service workers instead.

Applicable standards

Change history

  • 6.48 Mar 2023 Removed from W3 validator in October 2022.
  • 5.24 Dec 2016 Added to W3 validator in December 2016.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: W3cHtml5ObsoleteAttributeHtmlManifest