Video format with limited browser support Browser Compatibility Check

Description

This video element uses a source with poor cross-browser support. Only the MP4 and WebM video formats are well supported across desktop and mobile browsers.

Help

Current video format support is:

• MP4 is supported by all major desktop and mobile browsers
• WebM is supported by all major desktop and mobile browsers
• 3GP is only supported by Firefox
• Ogg is not supported by Safari on macOS and iOS

Applicable standards

• Edge
• Internet Explorer
• Safari
• iPhone/iPad

Change history

• 6.50 Oct 2023 Fixed false positive when type attribute missing.
• 6.49 May 2023 WebM now implemented in all browsers.
• 5.37 May 2020 Improved detection.
• 5.23 Oct 2016 WebM now implemented in Edge 14.
• 5.10 Oct 2015 Now fires for Edge.
• 5.9 Jun 2015 Added.

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

Rule ID: BugHtmlVideoCodec