availablity check before run on active tab

scripts/background/actions.js

@@ -110,16 +110,17 @@ function extractTabData(tab, itemsSelector, fieldSelectors) {
 }
 
 /**
- * get report in from the target tab, usually used to detect if the content script is ready.
+ * ping target tab, usually used to detect if the content script is ready.
  * @param {any} tab target tab
- * @returns {Promise<string>} a promise of the report in message
+ * @returns {Promise<boolean>} a promise of boolean value indicates if ping success
  */
-function reportIn(tab) {
+async function ping(tab, count = 1) {
     let req = {
         action: ACTION_REPORT_IN
     }
     let cond = r => r == req.action;
-    return sendMessage(tab, req, 'Check tab availability...', cond);
+    let pong = await sendMessage(tab, req, 'Check tab availability...', cond, 1000, count).catch(() => { });
+    return pong == ACTION_REPORT_IN;
 }
 
 /**