Indicator of seek bar on audio player not reset to zero

[luixxiul]

Steps to reproduce

1. Open a room
2. Upload an audio file
3. Play it and wait until the counter resets zero

Outcome

What did you expect?

The indicator of the seek bar should be reset to zero.

What happened instead?

It is reset to nearly zero, but not exactly. The position of the indicator slightly changes every time it resets, as the values --fillTo below show.

Both cases --fillTo and value are expected to be zero, unless intended.

The counter is reset to zero.

This issue essentially causes flaky Percy test reported here: #24897

Operating system

Debian

Browser information

Firefox

URL for webapp

No response

Application version

develop branch

Homeserver

No response

Will you send logs?

No

[artcodespace]

@luixxiul Good spot! Easily reproducible on the nightly build, have tagged as tolerable (from the user's perspective), but fixing anything that helps decrease flaky tests and improve developer experience is very helpful for us.

[richvdh]

When fixing this: note that the seek bar was disabled in Percy in order to stop it flaking out due to this bug. matrix-org/matrix-react-sdk@5a1a91f should be reverted once the bug is fixed.

[t3chguy]

Percy tests are gone