CI fails on Windows

[uki00a]

test result:  FAIL  704 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out (30788.36ms)

There were 2 test failures.
 FAIL  GET / should serve html
Http: error sending request for url (http://127.0.0.1:8080/): connection error: An existing connection was forcibly closed by the remote host. (os error 10054)
    at Object.constructError ($deno$/errors.ts:69:13)
    at unwrapResponse ($deno$/dispatch_json.ts:40:12)
    at Object.sendAsync ($deno$/dispatch_json.ts:91:10)
    at async sendFetchReq ($deno$/fetch.ts:472:11)
    at async fetch ($deno$/fetch.ts:540:27)
    at async Object.fn (server_test.ts:31:16)
    at async Object.runTests ($deno$/testing.ts:157:7)
    at async runTestModules (runner.ts:234:3)
    at async main (runner.ts:276:5)
 FAIL  GET /ws should upgrade conn to ws
ConnectionRefused: No connection could be made because the target machine actively refused it. (os error 10061)
    at Object.constructError ($deno$/errors.ts:41:13)
    at unwrapResponse ($deno$/dispatch_json.ts:40:12)
    at Object.sendAsync ($deno$/dispatch_json.ts:91:10)
    at async Object.connect ($deno$/net.ts:292:15)
    at async connectWebSocket (file:///D:/a/deno/deno/std/ws/mod.ts:539:12)
    at async Object.fn (server_test.ts:40:8)
    at async Object.runTests ($deno$/testing.ts:157:7)

/std/examples/chat/server_test.ts fails on Windows.

I don't have Windows PC, so it is difficult for me to test at hand...

Does anyone know the cause or solution for this?

Thanks.

[hazae41]

This works well for me on virtualized Windows 10
https://github.com/bartlomieju/deno/blob/fe9ac35a650dfeea9168fc1cbbbf323b5689fc3b/std/examples/chat/server_test.ts