Bug 236417

Summary: Play does not resume after pausing on Udemy.com and other websites
Product: WebKit Reporter: Jerome Olivier <jerome.olivier>
Component: MediaAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: ap, bfulgham, eknoor, jer.noble, webkit-bug-importer
Priority: P2 Keywords: HTML5, InRadar, Performance
Version: WebKit Nightly Build   
Hardware: Mac (Intel)   
OS: macOS 12   
URL: Udemy.com
Attachments:
Description Flags
video illustrating behavior
none
example using provided Udemy course none

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.