chrome.runtime.onMessage.addListener(function (request, response, callback function) {
        reqVariable1 = request[“var1”];
        reqVariable2 = request[“var2”];
        reqVariable3 = request[“var3”];
        reqVariable4 = request[“var4”];
        if(timeout) {
            console.log("Came to process try block");
            messaging(reqVariable1, reqVariable2, reqVariable3,reqVariable4)
        }
       callbackfunction();

    });


 chrome.runtime.sendMessage({“response”: [var1,var2, var3, var4]}, function(response) {

          console.log(response);
        })