Script modules have partial support Browser Compatibility Check


Script modules are only supported in modern browsers.


Legacy browsers do not load module scripts. Use a nomodule fallback script for legacy browsers.

Applicable standards

Change history

  • 5.36 Jan 2020 No longer fires for Firefox 60+.
  • 5.30 Jul 2018 No longer fires for Edge 16+.
  • 5.27 Oct 2017 Added.

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

Rule ID: BugHtmlScriptModule