我有一个chrome扩展名.我需要从当前页面的HTML源代码进行分析.我在这里找到了各种带有背景页面和内容脚本的解决方案,但没有人帮助我.这是我到目前为止:
manifest.json:
{
"name": "Extension",
"version": "1.0",
"description": "Extension",
"browser_action": {
"default_icon": "bmarkred.ico",
"popup": "Test.html"
},
"content_scripts": [
{
"matches": ["http://*/*"],
"js": ["content.js"]
}
],
"background": {
"page": "backgroundPage.html"
},
"permissions": [
"cookies",
"tabs",
"http://*/*",
"https://*/*"
]
}
background.html:
<html>
<head>
<script type="text/javascript">
try {
chrome.tabs.getSelected(null, function (tab) {
chrome.tabs.sendRequest(tab.id, {action: "getSource"}, function(source) {
alert(source);
});
});
}
catch (ex) {
alert(ex);
}
</script>
</head>
</html>
content.js:
chrome.extension.onRequest.addListener(function(request, sender, callback) {
if (request.action == "getSource") {
callback(document.getElementsByTagName('html')[0].innerHTML);
}
});
警报始终警告未定义.即使我在content.js文件中将回调函数更改为: …