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擴展:: uncaught_exception_handler:8錯誤在事件處理(不明):類型錯誤:無法讀取未定義接收錯誤在試圖傳遞消息background.js:
Background.js的特性「送別」:
chrome.runtime.onMessage.addListener(function(message,sender,sendResponse){
if(message[message.length - 1] === true)
{
var AFArray = message;
sendResponse({farewell: AFArray});
}
if(message === "request")
{
sendResponse({farewell:"TEsting!"});
}});
內容腳本:
function AFCopy()
{
var AFArrayCount = 0;
var AFArray = [];
//cycle over classes and apply label to array.
while(AFArrayCount <4)
{
if(document.getElementsByClassName("_xd6")[AFArrayCount])
{
AFArray[AFArrayCount] = document.getElementsByClassName("_xd6")[AFArrayCount].getAttribute("LABEL");
AFArrayCount++;
}
}
//assign copy signature
AFArray.push(true);
//test array is constructed correctly
console.log(AFArray);
//send array to background.js
chrome.runtime.sendMessage({greeting: AFArray}, function(response) {
console.log(response.farewell);});
}
此功能在onClick事件運行。
也試圖在如果要更換隻是普通的background.js內的語句「sendResponse({」測試!「});」。這也不起作用。 –