The channel is getting cancelled in HttpChannelChild::DoOnStartRequest
{
"start": 499546223.6755594,
"end": null,
"name": "LogMessages",
"category": 1,
"threadId": null,
"data": {
"type": "Log",
"module": "nsHttp",
"name": "HttpChannelChild::Cancel [this=1a5f5463200, status=80004004]\n"
}
}
The content type is application/vnd.apple.mpegurl and Firefox doesn't know how to display it.
Bug 1912873 Comment 2 Edit History
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The channel is getting cancelled in HttpChannelChild::DoOnStartRequest [here](https://searchfox.org/mozilla-central/rev/26a98a7ba56f315df146512c43449412f0592942/netwerk/protocol/http/HttpChannelChild.cpp#590,597) The content type is application/vnd.apple.mpegurl and Firefox doesn't know how to display it, or the listener just returns 80004004 - NS_ERROR_ABORT from OnStartRequest