將popup.html加載到內容腳本的發送請求在此情況下不會收到任何內容

Question

我的要求是每當我單擊應向內容腳本發送請求的擴展圖標並且應該發送具有所需屬性的回覆時。我可以發送請求。而當我檢查控制檯內容腳本正在接收請求並處理它。但在彈出端我什麼也收不到。
這裏是內容腳本

chrome.extension.onRequest.addListener(function ListeningMethod(request, sender, callback) 
{ 
    switch(request.action) 
    { 
     case "QuestionProperties": 
      sendResponse({attributes: {"h":"s","r":"t"} }); 
     break; 
    } 
}); 

而且在popup.html我將請求發送這樣

$(document).ready(function(){ 
     chrome.tabs.getSelected(null, function(tab) { 
      chrome.tabs.sendRequest(tab.id, {action: "QuestionProperties"}, function(response){ 
       alert('received something'); // Even this is not alerting 
            var data = JSON.parse(response.attributes); 
       alert(JSON.stringify(data)); // Here also I could not recieve anything. At Contentscript side I have checked the response that is being sent. I am able to see the data. But at Popup side I am unable to recieve it. Please help me on this. 
      }); 
     }); 
}); 

Answer 1

你content_script沒有打電話來發送響應正確的方法請求處理程序。您的聽衆功能將其命名爲callback，但隨後嘗試使用sendRequest。爲了清楚起見，您還應該刪除函數名稱或在addListener之外定義它。

chrome.extension.onRequest.addListener(function(request, sender, callback) 
{ 
    switch(request.action) 
    { 
     case "QuestionProperties": 
      callback({attributes: {"h":"s","r":"t"} }); 
     break; 
    } 
});