Open Bug 1687119 Opened 2 years ago Updated 2 years ago

Subtitle (WEBVTT) with a style is not correctly loaded (new issue from the last update?)

Categories

(Core :: Audio/Video: Playback, defect, P3)

Firefox 84
Unspecified
All
defect

Tracking

()

UNCONFIRMED

People

(Reporter: terence4444, Assigned: alwu)

References

(Blocks 1 open bug)

Details

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

I open page: https://learngerman.dw.com/en/berufswahl/l-38215363 and play the video with subtitle on.

Actual results:

After the last 1 or 2 updates, the subtitles cannot be correctly displayed.

Expected results:

The subtitle on the video shall be correctly displayed.

problematic video: https://learngerman.dw.com/en/berufswahl/l-38215363
but one other video can be played with subtitle correctly: https://learngerman.dw.com/en/lebenslinien/l-38051792

I compared the subtitle for the first video: https://learngerman.dw.com/media/subtitles/56236290
and the one from the second: https://learngerman.dw.com/media/subtitles/43805119

There is a difference in the format/style. But I am not sure if this is the reason.

It looks like this issue was brought from the last one or 2 updates. Could you please have a look?
Thanks.

Summary: Subtitle (WEBVTT) with a style is not correctly loaded (new issue from the last update) → Subtitle (WEBVTT) with a style is not correctly loaded (new issue from the last update?)

Firefox version: 84.0.2 (64-bit) on Windows 10

OS: Unspecified → Windows 10
Hardware: Unspecified → x86_64

I downloaded the latest nightly build: 86.0a1 (2021-01-16) (64-bit)
This problem exists.

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Component: Untriaged → Audio/Video: Playback
Product: Firefox → Core

This failure occurs in the process of calculating CSS style for region elements.

Assignee: nobody → alwu
Blocks: webvtt
Severity: -- → S3
OS: Windows 10 → All
Priority: -- → P3
Hardware: x86_64 → Unspecified
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