Tests that appropriate Network domain events are dispatched for a fetchLater POST request when its Document is alive.
Network.requestWillBeSent {
    documentURL : <string>
    frameId : <string>
    hasUserGesture : false
    initiator : {
        type : script
        url : https://127.0.0.1:8443/
    }
    loaderId : <string>
    redirectHasExtraInfo : false
    request : {
        hasPostData : true
        headers : {
            Accept : */*
            Accept-Language : en-us,en;q=0.9
            Content-Type : text/plain;charset=UTF-8
            Referer : https://127.0.0.1:8443/inspector-protocol/resources/inspector-protocol-page.html
            User-Agent : <string>
            sec-ch-ua : "content_shell";v="999"
            sec-ch-ua-mobile : ?0
            sec-ch-ua-platform : "Unknown"
        }
        initialPriority : High
        method : POST
        mixedContentType : blockable
        postData : {"foo":"bar"}
        postDataEntries : [
            [0] : {
                bytes : eyJmb28iOiJiYXIifQ==
            }
        ]
        referrerPolicy : strict-origin-when-cross-origin
        url : https://127.0.0.1:8443/devtools/network/resources/resource.php
    }
    requestId : <string>
    timestamp : <number>
    type : Fetch
    wallTime : <number>
}
Network.responseReceived {
    frameId : <string>
    hasExtraInfo : false
    loaderId : <string>
    requestId : <string>
    response : {
        alternateProtocolUsage : unspecifiedReason
        charset :
        connectionId : <number>
        connectionReused : true
        encodedDataLength : <number>
        fromDiskCache : false
        fromPrefetchCache : false
        fromServiceWorker : false
        headers : {
            Access-Control-Allow-Origin : *
            Cache-Control : no-store, no-cache, must-revalidate
            Connection : Keep-Alive
            Content-Length : 11
            Content-Type : text/plain
            Date : <string>
            Expires : Thu, 01 Dec 2003 16:00:00 GMT
            Keep-Alive : timeout=10
            Pragma : no-cache
            Server : Apache
            X-Powered-By : <string>
        }
        mimeType : text/plain
        protocol : http/1.1
        remoteIPAddress : 127.0.0.1
        remotePort : 8443
        responseTime : <number>
        securityState : secure
        status : 200
        statusText : OK
        timing : {
            connectEnd : -1
            connectStart : -1
            dnsEnd : -1
            dnsStart : -1
            proxyEnd : -1
            proxyStart : -1
            pushEnd : 0
            pushStart : 0
            receiveHeadersEnd : <number>
            receiveHeadersStart : <number>
            requestTime : <number>
            sendEnd : <number>
            sendStart : <number>
            sslEnd : -1
            sslStart : -1
            workerFetchStart : -1
            workerReady : -1
            workerRespondWithSettled : -1
            workerStart : -1
        }
        url : https://127.0.0.1:8443/devtools/network/resources/resource.php
    }
    timestamp : <number>
    type : Fetch
}
Network.loadingFinished {
    encodedDataLength : <number>
    requestId : <string>
    timestamp : <number>
}
Unable to get fetchLater response body {
    code : -32000
    message : No resource with given identifier found
}