chrome.runtime.sendMessage({type:'test', method: 'getHtml', data: 'test'}, {}, function (response) {
         console.log(response);
    });

    chrome.runtime.onMessage.addListener(function (request, sender, sendResponse) {
    
            console.log('chrome.runtime.onMessage', request, sender);
    
            if(request&&request.type&&request.method) {
                sendResponse(window[request.type][request.method](request.data));
            }
    
        });

    function getHtml (name) {
            // fetch не работает.
            let html = fetch('/html/'+name+'.html').then(function(response) {
                return response.text();
            });
            return html;
    
            // Promise тоже не работает.
            return $.get('/html/'+name+'.html').then(result => {
               console.log(result);
               return result;
            });
        }