download as much of the media as possible. If the media is not a

central focus, downloading the entire media resource can consume

valuable bandwidth, so preload="metadata" would be a better option.

- **data-root-path** - define path to root directory of Able Player; generally not required but may be needed in rare instances where Able Player is unable to identify its current path on the web server

- **data-heading-level** - optional; Able Player injects an off-screen HTML heading "Media Player" (or localized equivalent) at the top of the player so screen reader users can easily find the player. It automatically assigns a heading level that is one level deeper than the closest parent heading. This attribute can be used to manually set the heading level, rather than relying on Able Player to assign it automatically. Valid values are 1 through 6. A value of 0 is also supported, and instructs Able Player to not inject a heading at all. The latter should be used only if the web page already includes a heading immediately prior to the media player.

- **data-hide-controls** - optional; set to "true" to hide controls during playback. Controls are visibly hidden but still accessible to assistive technologies. Controls reappear if user presses any key or moves the mouse over the video player region.