448633 - <audio> with autoplay="false" plays anyway

Status: RESOLVED INVALID

(Core :: Audio/Video, defect)

Description

[skierpage]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1a2pre) Gecko/2008073003 Minefield/3.1a2pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1a2pre) Gecko/2008073003 Minefield/3.1a2pre ID:2008073003

http://www.whatwg.org/specs/web-apps/current-work/#autoplay suggests that autoplay="false" should not play the sound.  But it does.

Reproducible: Always

Steps to Reproduce:
1.  Go to a page with an <audio> tag with autoplay="false" attribute.

Actual Results:  
The audio starts playing.

Expected Results:  
Audio should not immediately start playing.

I also tried paused="true", and likewise the audio started playing, not sure if thta's a separate bug.

Possibly related: bug 250855 is that autoplay=false doesn't work in embed tag.

Comment 1

[cajbir (:cajbir)]

autoplay is a boolean attribute. autoplay="false" actually means that the value of autoplay is true. So the audio plays.

From the HTML 5 spec:

"The presence of a boolean attribute on an element represents the true value, and the absence of the attribute represents the false value. "

Comment 2

[Joshua Cranmer [:jcranmer]]

"The autoplay attribute is a boolean attribute." (§4.7.10.6)
"The presence of a boolean attribute on an element represents the true value, and the absence of the attribute represents the false value." (§2.4.2)

Therefore, autoplay="false" is actually setting the attribute to true. To set it to false, don't specify autoplay at all.

RESO INVA