Muted Auto play ads still mute music
Reported by
neal...@gmail.com,
Feb 5 2018
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Issue descriptionExample URL: http://www.ajc.com/news/national/apple-text-glitch-replaces-with/RolFGAeg1JVhPF8AfvVk8H/ Steps to reproduce the problem: 1. Play some music via iOS Music app 2. Navigate to URL and wait for ad to start playing on its own 3. Music will fade even though the ad is muted 4. In some cases using the headset play button will restart the music, in some cases it won’t NOTE I don’t think this is entirely solved by the upcoming feature to disable auto-play ads, because if the ad is muted Chrome shouldn’t cause music being played to be stopped, whether the ad is auto play or not. What is the expected behavior? Music shouldn’t stop for ads I don’t care about. What went wrong? Music stops and in some cases the ad isn’t even on screen so I have to hunt for it to stop it, or restart music playing for unobvious reasons. Did this work before? N/A Is it a problem with Flash or HTML5? N/A Does this work in other browsers? No safari on iOS 11.2.5 Chrome version: Google Inc. Copyright 2018 Google Inc. All rights reserved. Google Chrome 64.0.3282.112 (Official Build) stable (64-bit) Revision 7ceafc6ca46e012a6dbb5933d52fae00eda1f3ca-refs/branch-heads/3282@{#576} OS iOS User Agent Mozilla/5.0 (iPad; CPU OS 11_2_5 like Mac OS X) AppleWebKit/604.1.34 (KHTML, like Gecko) CriOS/64.0.3282.112 Mobile/15D60 Safari/604.1 Command Line --flag-switches-begin --flag-switches-end Variations 3095aa95-3f4a17df 9e5c75f1-af31fbd4 f79cb77b-3d47f4f4 ef25c1eb-3f4a17df 2d871858-ca7d8d80 494d8760-6843eff2 3ac60855-486e2a9c 4442aae2-6e597ede ed1d377-e1cc0f14 75f0f0a0-6bdfffe7 e7e71889-e1cc0f14 34baa302-d25ea691 Channel: n/a OS Version: 11.2.5 Flash Version: Contents of chrome://gpu: That url doesn’t seem to work on iOS for me. Thanks!
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Feb 22 2018
I'm not sure how Chrome mutes audio on videos or if it is actually done by Chrome. +michaeldo: Do you know?
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Feb 23 2018
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Feb 23 2018
Assigning to michaeldo to answer to comment #2 Please reassign if needed.
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Feb 23 2018
I looked into this a bit and the same behavior is seen in both Chrome and Safari on iOS. We are not doing anything in Chrome to play or prevent this from playing today. I don't know if the upcoming Chrome changes would fix this either, but it looks like the autoplay is either a bug (or intentional) in the videoplayer that is used by this site. By inspecting the page, it appears to be using chartbeat_video.js as the player. The documentation I found[1] as well as the source on the page show that the video is loaded inside an overridden window.onload method, so the video source doesn't even exist until after the page is loaded. This is probably why the video can autoplay after it is loaded even in Safari. iOS Chrome doesn't interact with videos at all from within Javascript, so it would be very difficult for us to prevent this. (Especially because the player is loaded after the page is loaded). However, Apple may be able to do something in WKWebView & Safari. nealsid@, thank you for the report. I would recommend filing an Apple Radar for this issue as it is functioning the same in Safari and Apple should have a strong interest in fixing this. Additionally, trying to contact chartbeat directly may provide confirmation if this is a bug or intentional. [1]: http://support.chartbeat.com/docs/video.html#jssdk
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Feb 26 2018
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Mar 16 2018
Thank you for the investigation and sorry for letting this drop off my radar. I was going to file a bug with Apple but am no longer able to reproduce it on the original AJC link. If it happens again I’ll file an Apple Radar link and contact chartbeat as you suggest.
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May 25 2018
Seems like the bug is no longer reproducible. |
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Comment 1 by huangml@chromium.org
, Feb 22 2018Status: (was: Unconfirmed)