fix: send data during graceful close. #145

Job	Run time
check	1m 3s
test-electron-renderer	28s
test-electron-main	1m 29s
test-chrome	1m 30s
test-chrome-webworker	1m 29s
test-firefox	5m 54s
test-firefox-webworker	1m 53s
test-node (windows-latest, lts/*)	2m 41s
test-webkit (ubuntu-latest, lts/*)	17s
test-node (ubuntu-latest, lts/*)	1m 12s
test-webkit (macos-latest, lts/*)	1m 41s
test-node (macos-latest, lts/*)	2m 32s
test-webkit-webworker (ubuntu-latest, lts/*)	15s
test-webkit-webworker (macos-latest, lts/*)	1m 42s
release	0s
	24m 6s

Provide feedback