Hello world problem starting

Extensions
5

Update! I got it working. In viewer.js in the public folder, I made a change to the url value on line 18 to hardwire https: rather than passing in location.protocol

function createRequest(type, method) {

    return {
        type: type,
        // url: location.protocol + '//localhost:8081/color/' + method,
        url: 'https://localhost:8081/color/' + method,
        success: updateBlock,
        error: logError
    }
}

Maybe we missed a step along the way somewhere in the setup that would have set this as https via location.protocol? Thanks.