background.js

chrome.tabs.create(
  {
    url: url,
  },
  (tab) => {
    chrome.tabs.executeScript(
      tab.id,
      {
        code: `var blobURL = "${blobURL}"; console.log("1:::")`,
      },
      function () {
        chrome.tabs.executeScript(tab.id, {
          code: `(${sendFile})();`,
        });
      }
    );
  }
);