videoMimeType
The MIME type of the video asset.
Declaration
attribute String videoMimeType;Discussion
The MIME type of the video asset, either as detected from a network request for the asset (if it was provided as a URL on videoSrc) or as provided by the developer prior to assigning a prepared ArrayBuffer to videoSrc.
This property, while writable, behaves as read-only if the video was obtained through a network request to a string URL set on videoSrc. In this case, writes to this property are ignored.
However, if the intent is to provide the video by assigning an already-loaded ArrayBuffer to videoSrc, you must set this property to the correct MIME type beforehand.