How does Chrome determine that the WebTransport connection is disconnected?

[李宇翔]

I got "Uncaught (in promise) WebTransportError: Connection lost." 

I don't know why it happened. Because normal communication was in progress at that time. 

[Yutaka Hirano]

Could you file a bug ticket via https://crbug.com/new, capture a netlog and attach it to the bug ticket? 

Thanks,

On Fri, Mar 18, 2022 at 5:40 PM 李宇翔 <langh...@gmail.com> wrote:

I got "Uncaught (in promise) WebTransportError: Connection lost." 

I don't know why it happened. Because normal communication was in progress at that time. 

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[李宇翔]

I got [43313:11267:0413/171348.442094:ERROR:quic_connection.cc(3957)] Client: Write failed with error: -109 (Unknown error: -109)

The server had no error. The network was in good condition. This error can be repeated stably.

[andy tian]

I testing switching networks, then the connection lost was triggered soon after switching the network