可以在chrome扩展中读取http/2请求报头字段吗？

{
  "manifest_version": 2,
  "name": "My Extension",
  "version": "1.0",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "scripts": ["background.js"],
    "persistent": false
  },
  "manifest_version": 2
}

chrome.webRequest.onBeforeSendHeaders.addListener(
  function(details) {
    // 检查请求是否使用HTTP/2协议
    if (details.protocol === "http/2") {
      // 读取请求报头字段
      var headers = details.requestHeaders;
      for (var i = 0; i < headers.length; i++) {
        console.log(headers[i].name + ": " + headers[i].value);
      }
    }
  },
  {urls: ["<all_urls>"]},
  ["requestHeaders"]
);