javascript - 焦点提交按钮并在 chrome 中选择正确的选项卡不起作用

Question

它只选择正确的选项卡，但不关注提交按钮：

function(tab) {
  var winid = tab.windowId;
    var tabid = tab.id;

        chrome.tabs.getAllInWindow(winid, function(tabs) {
      for (var j = 0; j < tabs.length;++j) {
        if (tabs[j].id == tabid) {
            chrome.tabs.executeScript(null, { code: "document.getElementById('submit').focus()" });
             chrome.tabs.update(tabs[(j + 1) % tabs.length].id, {
            'selected': true
          });
          break;
        }
      }
    });