Jester crashes after first request (windows)
Jester is not working, it gives this error after the first request. I'm running on Windows and I have read that https://github.com/dom96/httpbeast doesn't works on windows.

If this error is because running on Windows, shouldn't it don't let you even compile?



```
server2.nim(6)           server2
jester.nim(489)          serve
asyncdispatch.nim(1651)  runForever
asyncdispatch.nim(1516)  poll
asyncdispatch.nim(355)   runOnce
asyncdispatch.nim(191)   processPendingCallbacks
asyncmacro.nim(36)       serve_continue
asynchttpserver.nim(309) serveIter
asyncmacro.nim(313)      processClient
asyncmacro.nim(36)       processClient_continue
asynchttpserver.nim(288) processClientIter
asyncmacro.nim(313)      processRequest
asyncmacro.nim(47)       processRequest_continue
[[reraised from:
server2.nim(6)           server2
jester.nim(489)          serve
asyncdispatch.nim(1651)  runForever
asyncdispatch.nim(1516)  poll
asyncdispatch.nim(355)   runOnce
asyncdispatch.nim(191)   processPendingCallbacks
asyncmacro.nim(36)       serve_continue
asynchttpserver.nim(309) serveIter
asyncmacro.nim(313)      processClient
asyncmacro.nim(39)       processClient_continue
asynchttpserver.nim(288) processClientIter
asyncfutures.nim(302)    read
]]
[[reraised from:
server2.nim(6)           server2
jester.nim(489)          serve
asyncdispatch.nim(1651)  runForever
asyncdispatch.nim(1516)  poll
asyncdispatch.nim(355)   runOnce
asyncdispatch.nim(191)   processPendingCallbacks
asyncfutures.nim(349)    :anonymous
]]
Error: unhandled exception: Async procedure (processRequest) yielded `nil`, are you await'ing a `nil` Future?
Async traceback:
  server2.nim(6)           server2
  jester.nim(489)          serve
  asyncdispatch.nim(1651)  runForever
  asyncdispatch.nim(1516)  poll
    ## Processes asynchronous completion events
  asyncdispatch.nim(355)   runOnce
  asyncdispatch.nim(191)   processPendingCallbacks
    ## Executes pending callbacks
  asyncmacro.nim(36)       serve_continue
    ## Resumes an async procedure
  asynchttpserver.nim(309) serveIter
  asyncmacro.nim(313)      processClient
  asyncmacro.nim(36)       processClient_continue
    ## Resumes an async procedure
  asynchttpserver.nim(288) processClientIter
  asyncmacro.nim(313)      processRequest
  asyncmacro.nim(47)       processRequest_continue
    ## Resumes an async procedure
  #[
    server2.nim(6)           server2
    jester.nim(489)          serve
    asyncdispatch.nim(1651)  runForever
    asyncdispatch.nim(1516)  poll
      ## Processes asynchronous completion events
    asyncdispatch.nim(355)   runOnce
    asyncdispatch.nim(191)   processPendingCallbacks
      ## Executes pending callbacks
    asyncmacro.nim(36)       serve_continue
      ## Resumes an async procedure
    asynchttpserver.nim(309) serveIter
    asyncmacro.nim(313)      processClient
    asyncmacro.nim(39)       processClient_continue
      ## Resumes an async procedure
    asynchttpserver.nim(288) processClientIter
    asyncfutures.nim(302)    read
  ]#
Exception message: Async procedure (processRequest) yielded `nil`, are you await'ing a `nil` Future?
Exception type: [AssertionError]
```