# Failed to execute 'appendBuffer' on 'SourceBuffer'

**URL:** <https://community.wowza.com/t/failed-to-execute-appendbuffer-on-sourcebuffer/49852>\
**Category:** Wowza Player\
**Created:** [October 5, 2017, 6:28pm UTC](https://community.wowza.com/t/failed-to-execute-appendbuffer-on-sourcebuffer/49852 "2017-10-05T18:28:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Chris\_Jerrett](https://avatars.discourse-cdn.com/v4/letter/c/51bf81/32.png) [@Chris\_Jerrett](https://community.wowza.com/u/Chris_Jerrett)\
**Post date:** [October 5, 2017, 6:28pm UTC](https://community.wowza.com/t/failed-to-execute-appendbuffer-on-sourcebuffer/49852/1 "2017-10-05T18:28:19Z")

</div>

When using the Wowza Player the player stops and throws the error, “Failed to execute ‘appendBuffer’ on ‘SourceBuffer’” the full trace is below. The player also constantly prints, “INFO: PlayerStreamer: - DRAIN init video.” Thanks for your help in advance.

Uncaught DOMException: Failed to execute ‘appendBuffer’ on ‘SourceBuffer’: The SourceBuffer is full, and cannot free space to append additional buffers. at v6ZS.appendNextAudioChunkWork ([http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1104816](http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1104816)) at [http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1105506](http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1105506) at v6ZS.waitForUpdateEnd ([http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1106945](http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1106945)) at v6ZS.appendNextAudioChunk ([http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1105450](http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1105450)) at [http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1114085](http://player.wowza.com/player/latest/js/wowzaplayer.js:1:1114085)v6ZS.appendNextAudioChunkWork @ wowzaplayer.js:1 (anonymous) @ wowzaplayer.js:1 v6ZS.waitForUpdateEnd @ wowzaplayer.js:1 v6ZS.appendNextAudioChunk @ wowzaplayer.js:1 (anonymous) @ wowzaplayer.js:1 setTimeout (async) (anonymous) @ wowzaplayer.js:1