chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
    switch (request.type) {
        case 'fetchChromeXmlrpc':
            (async () => {
                const response = await fetch(request.apiUrl, request.fetchCORSParams);
                const resText = await response.text()
                // console.log("chrome.runtime.onMessage.addListener fetchChromeXmlrpc response:", resText)
                sendResponse(resText);
            })();
            break;
        case 'fetchChromeJson':
            (async () => {
                const response = await fetch(request.apiUrl, request.fetchCORSOptions);
                const resJson = await response.json()
                console.log("chrome.runtime.onMessage.addListener fetchChromeJson response:", resJson)
                sendResponse(resJson);
            })();
            break;
        // 你可以定义任意内容，使用sendResponse()来返回它
        case 'test':
            sendResponse({'msg': 'test'});
            break;
    }

    return true; // keep the messaging channel open for sendResponse
});