Bug 263706

Summary:

HLS Stream Skips Forward When Resumed After Tab is Backgrounded

Product:

WebKit

Reporter:

zhenyi

Component:

Media

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED WORKSFORME

Severity:

Normal

CC:

eric.carlson, jer.noble, smoley, webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

Safari 17

Hardware:

Mac (Apple Silicon)

OS:

macOS 14

Attachments:

Description	Flags
Video demonstration of issue.	none

zhenyi

Reported 2023-10-25 20:59:18 PDT

Created attachment 468344 [details] Video demonstration of issue. When a <video> element playing an HLS stream is paused, and the tab is then backgrounded for a period of time (e.g., 5 minutes), upon resuming the video, it skips forward instead of continuing from the paused point. Steps to Reproduce: 1. Navigate to https://andadinosaur.com/hls-test in Safari. 2. Play the video. 3. Pause the video. 4. Open a new tab (this backgrounds the tab with the video). 5. Wait for 5 minutes. 6. Return to the original tab with the video. 7. Resume the video. Expected Results: The video should resume from the point where it was paused. Actual Results: The video skips forward when resumed.

Attachments
Video demonstration of issue. (262.90 KB, video/mp4) 2023-10-25 20:59 PDT, zhenyi	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Radar WebKit Bug Importer

Comment 1 2023-10-26 13:19:58 PDT

<rdar://problem/117548456>

Smoley

Comment 2 2024-01-23 12:41:55 PST

This does not reproduce for me on STP186. Are you still able to reproduce this on latest Safari Technology Preview? https://developer.apple.com/safari/download/ Thanks!

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