private async Task FirstWriteToInjectScriptSocketAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
try
{
await _injectScriptSocket.WriteToRequestAsync(buffer, offset, count);
Task <int> statusCodeTask = _injectScriptSocket.GetResponseStatusCode();
int statusCode = await TaskHelpers.WaitWithTimeout(
statusCodeTask,
timeout : TimeSpan.FromMilliseconds(1000),
resultIfTimedOut : 504 /*Gateway Timeout*/);
if (statusCode == 200)
{
return;
}
if (statusCode == 504)
{
ScriptInjectionTimedOut = true;
}
}
catch
{
// Fall through to error case
}
// If the initial send fails, we can switch to passthrough mode
// and retry this write. Browser Link won't work, but at least
// the page will be returned to the browser.
CloseInjectScriptSocketAndBecomePassthrough();
await WriteAsync(buffer, offset, count, cancellationToken);
}
async Task <int> IHttpSocketAdapter.GetResponseStatusCode()
{
IHttpSocketAdapter socket = await GetConnectedSocketAsync();
return(await socket.GetResponseStatusCode());
}