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Should HTMLMediaElement's buffered ranges be based on the active track buffers?

Status: Open.

#379 In w3c/media-source;

· Zaggy1024 opened on Aug 31, 2026

Detaching from a media element doesn’t abort the buffer append algorithm — so an append queued beforehand still runs, against a reset media element

Status: Open.

#378 In w3c/media-source;

· sideshowbarker opened on Aug 3, 2026

Empty edit (elst media_time = -1) handling under MSE diverges across engines and from non-MSE playback

Status: Open.

#377 In w3c/media-source;

· mormegil6 opened on Jul 23, 2026

Coded Frame Processing is unspecified when incoming coded frame's presentation timestamp coincides with an existing frame's

Status: Open.

#375 In w3c/media-source;

· jyavenard opened on May 13, 2026

Coded Frame Processing does not remove "SAP Type 2" decode-shadowed orphans (closes #187)

Status: Open.

#374 In w3c/media-source;

· jyavenard opened on May 13, 2026

Interop issues when an append overlaps currentTime

Status: Open.

#373 In w3c/media-source;

· ntrrgc opened on May 12, 2026

Support MediaSource in SharedWorker

Status: Open.

#371 In w3c/media-source;

· jimmywarting opened on Jan 18, 2026

BufferedChangeEvent members should be nullable

Status: Open.

#370 In w3c/media-source;

· annevk opened on Jan 10, 2026

·  

V2

Model seekable range for a MediaSource with finite duration

TPAC2025Agenda topic for TPAC 2025Agenda topic for TPAC 2025

Status: Open.

#369 In w3c/media-source;

· eirikbjornr opened on Oct 24, 2025

Clarification on returning to selection algorithm from end-of-stream

Status: Open.

#365 In w3c/media-source;

· JohnyTheCarrot opened on Apr 16, 2025

Clarification on removeSourceBuffer

Status: Open.

#364 In w3c/media-source;

· estobbart opened on Mar 25, 2025

·  

V2

Accidental trimming of overlapping text cues

timed-text

Status: Open.

#363 In w3c/media-source;

· ntrrgc opened on Mar 10, 2025