#Html5 audio autoplay not working how to

Notably, it is not possible for a non-empty accessible name to be composed only of whitespace since these must be trimmed. Note: As per the accessible name and description computation, accessible names are flat string trimmed of leading and trailing whitespace. When no accessible name is provided, the element will nonetheless be assigned an empty ( '') one. Note: As per the accessible name and description computation, each element always has an accessible name.

#Html5 audio autoplay not working how to

The accessible name is calculated using the accessible name and description computation.įor native markup languages, such as HTML and SVG, additional information on how to calculate the accessible name can be found in HTML Accessibility API Mappings 1.0, Accessible Name and Description Computation (working draft) and SVG Accessibility API Mappings, Name and Description (working draft).įor more details, see examples of accessible name. The accessible name is the programmatically determined name of a user interface element that is included in the accessibility tree. This audio element has an instrument to pause, stop, or turn the audio volume off. The following aspects are required in using this rule. An inapplicable outcome: technique needs further testing.

All passed outcomes: technique needs further testing.Any failed outcomes: technique is not satisfied.Not required for conformance to any W3C accessibility recommendation.

G170: Providing a control near the beginning of the Web page that turns off sounds that play automatically.Failure of Success Criterion 1.4.2 for absence of a way to pause or stop an HTML5 media element that autoplays.Understanding Success Criterion 1.4.2: Audio Control.Authors are recommended to use custom controls for keyboard navigation and cross browser accessibility support in general. The native video and audio controls in several browser and assistive technology combinations are not keyboard accessible and the video or audio element itself may not be announced. There are currently no assumptions Accessibility Support The instrument to pause or stop or turn the audio volume off is visible, has an accessible name that is not only whitespace, and is included in the accessibility tree. ( duration) the element has a media resource lasting more than 3 seconds and that contains audio.įor each test target, there is at least one instrument in the same web page to pause or stop the audio, or turn the audio volume off independently from the overall system volume control.( not paused) the element has a paused attribute value of false and.( not muted) the element has a muted attribute value of false and.( autoplay) the element has an autoplay attribute value of true and.This rule applies to any audio or video element for which all the following are true: Audio or video that plays automatically must have a control mechanism.