Localhost connections give "connection refused" errors

[douglasg14b]

Running from the CLI, localhost connections give a connection refused error.

{
    "iteration_count": 30000,
    "debug" : false,
    "load_type": "linear",
    "duration": 30,
    "steps": [
        {
            "id": 1,
            "url": "http://localhost:5228/api/v1/analytics/event",
            "method": "POST",
            "headers": {
                "Content-Type": "application/json"
            },
            "payload": "{\"eventData\":{\"type\":\"action\",\"name\":\"ButtonClick_SendVerificationButton\",\"buttonName\":\"back\"},\"context\":{\"scope\":\"EnterMDNDialog_SendVerificationButton\",\"scopes\":[\"EnterMDNDialog\",\"SendVerificationButton\"],\"app\":{\"appName\":\"my-app\",\"appPath\":\"\/my-app\",\"version\":2},\"device\":{\"os\":\"Windows\",\"browser\":\"Firefox\"},\"identities\":{\"deviceId\":\"abcd-1234\",\"customerId\":\"abcd-1234\"},\"extra\":{\"isSubscriber\":true,\"identifiedBy\":\"asurion-id\",\"verificationType\":\"MDN\",\"componentType\":\"BUTTON\"},\"meta\":{\"isTest\":true,\"artificial\":true}}}",
            "timeout": 2
        }
    ]
}