Tests that resources panel shows form data parameters.

http://127.0.0.1:8000/devtools/resources/post-target.cgi?queryParam1=queryValue1&queryParam2=
{
    _connectionId : <string>
    _initiator : <object>
    _priority : <string>
    _resourceType : "document"
    cache : {
    }
    connection : <string>
    request : {
        bodySize : <number>
        cookies : [
        ]
        headers : <object>
        headersSize : <number>
        httpVersion : "HTTP/1.1"
        method : "POST"
        postData : {
            mimeType : "application/x-www-form-urlencoded"
            params : [
                {
                    name : "formParam1"
                    value : "formValue1"
                }
                {
                    name : "formParam2"
                    value : ""
                }
            ]
            text : "formParam1=formValue1&formParam2="
        }
        queryString : [
            {
                name : "queryParam1"
                value : "queryValue1"
            }
            {
                name : "queryParam2"
                value : ""
            }
        ]
        url : "http://127.0.0.1:8000/devtools/resources/post-target.cgi?queryParam1=queryValue1&queryParam2="
    }
    response : {
        _fetchedViaServiceWorker : false
        _responseCacheStorageCacheName : undefined
        _serviceWorkerResponseSource : undefined
        _serviceWorkerRouterActualSourceType : undefined
        _serviceWorkerRouterMatchedSourceType : undefined
        _serviceWorkerRouterRuleIdMatched : undefined
        _transferSize : <number>
        bodySize : <number>
        content : {
            compression : <number>
            mimeType : "application/xml"
            size : <number>
        }
        cookies : [
        ]
        headers : <object>
        headersSize : <number>
        httpVersion : "HTTP/1.1"
        redirectURL : ""
        status : 200
        statusText : "OK"
    }
    serverIPAddress : "127.0.0.1"
    startedDateTime : <string>
    time : <number>
    timings : <object>
}