chrome 扩充开发

chrome 扩展开发html headscript// Called when the url of a tab changes.function checkForValidU

chrome 扩展开发

<html> <head>    <script>      // Called when the url of a tab changes.      function checkForValidUrl(tabId, changeInfo, tab) {        // If the letter 'g' is found in the tab's URL...        if (tab.url.indexOf('g') > -1) {          // ... show the page action.          chrome.pageAction.show(tabId);        }      };      // Listen for any changes to the URL of any tab.      chrome.tabs.onUpdated.addListener(checkForValidUrl);    </script><script type="text/javascript">//init functionfunction init(){  }</script></head> <body onLoad="init();"></body>                       </html>

这是一个background.html的内容,里面只是说一个方法      chrome.tabs.onUpdated.addListener(checkForValidUrl);是在刷新浏览器的时候触发


不对,不对,应该是浏览器自己做更新的时候触发,如果人为的输入url不会触发,还有点书签的时候不会触发