将URL发送到后台页面

Question

我通过内容脚本获取网址，并尝试通过sendMessage将其传递到我的后台页面，但收到SELECT r.totalqty, f.profit, p.mymonth, c.title FROM (SELECT invoiceid,Sum(qty) totalqty,product_category_id FROM sold_items GROUP BY sold_items.product_category_id) AS r LEFT JOIN (SELECT invoiceid,Sum(profit) profit FROM profit_table GROUP BY profit_table.invoiceid) AS f ON r.tid = f.tid LEFT JOIN (SELECT tid,DATE(tdate) mymonth FROM pstatements) AS p ON r.invoiceid = p.invoiceid LEFT JOIN (SELECT id,title FROM product_category) AS c ON r.product_category_id = c.id WHERE YEAR(p.mymonth)='2017' GROUP BY DATE(p.tdate) 。

内容脚本：

[object Object]

后台脚本：

var kom = document.querySelectorAll("a[href*='permalink']");
var linkX = kom[0];

chrome.runtime.sendMessage(
    {
      link: linkX
    });

我发现你无法通过消息传递DOM节点，数据必须是JSON可序列化的。

如何发送我的网址？

Answer 1

怎么样

chrome.runtime.sendMessage(
{
    link: linkX.href
});

Answer 2

你可以试试这个..

chrome.runtime.sendMessage({
     link: linkX.href
});