Bug 236417 - Play does not resume after pausing on Udemy.com and other websites
Summary: Play does not resume after pausing on Udemy.com and other websites
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Media (show other bugs)
Version: WebKit Nightly Build
Hardware: Mac (Intel) macOS 12
: P2 Normal
Assignee: Nobody
URL: Udemy.com
Keywords: HTML5, InRadar, Performance
Depends on:
Blocks:
 
Reported: 2022-02-09 16:45 PST by Jerome Olivier
Modified: 2022-03-02 14:11 PST (History)
5 users (show)

See Also:

Attachments
video illustrating behavior (56.73 MB, video/quicktime)
2022-02-24 10:31 PST, Jerome Olivier 		no flags Details
example using provided Udemy course (17.51 MB, video/quicktime)
2022-03-02 14:11 PST, Jerome Olivier 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description Jerome Olivier 2022-02-09 16:45:32 PST 
On Udemy.com and other similar websites, video often does not resume after being paused.
Comment 1 Alexey Proskuryakov 2022-02-10 09:59:36 PST 
Thank you for the report.

Could you please add details about your configuration (software and hardware)?

Is there any way for us to reproduce this? Opening udemy.com, I don't see any videos that would be free to play.
Comment 2 Jerome Olivier 2022-02-11 09:56:34 PST 
Let me set up a scenario that makes it easy to reproduce and get back to you. Not sure if I can reproduce using the free videos.
Comment 3 Radar WebKit Bug Importer 2022-02-16 16:46:15 PST 
<rdar://problem/89056351>
Comment 4 Jerome Olivier 2022-02-24 10:31:11 PST 
Created attachment 453116 [details]
video illustrating behavior

Here is an example of the issue raised. The behavior is not reproducible in Chrome or other browsers.
Comment 5 Jerome Olivier 2022-02-24 10:36:01 PST 
The only way to get the playback interaction to work again is to reload the page.

Let me know if there's anything else I can do.

PS
Initially reported while using a 2018 i5 macMini w/ 32GB RAM & 512GB SSD
Also tested on a 2015 Core i7 MacBook Air w/ 8GB RAM & 512GB SSD
Screen capture recorded using a 2020 8CPU/8GPU M1 MacBook Air w/ 16GBs RAM & 512GB SSD
Comment 6 Eknoor 2022-02-28 15:18:43 PST 
Thank you for the update.
Does the issue reproduce for you using this course?
https://www.udemy.com/course/fearless-public-speaker-bootcamp-by-ricky-mendoza/learn/lecture/4661670#overview

Which version of Safari and macOS are you reproducing this issue on?
Comment 7 Jerome Olivier 2022-03-01 07:09:03 PST 
Currently, I am running the following:

Version 15.3 (17612.4.9.1.8)
macOS Monterey 12.2.1 (21D62)

I will try to reproduce the bug and get back to you. Basically, it happens intermittently after I pause the video, switch to another Space, then back to Safari and try to play. Hope that helps.
Comment 8 Jerome Olivier 2022-03-02 14:11:53 PST 
Created attachment 453659 [details]
example using provided Udemy course

Here is a screen capture using the requested Udemy course.