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我正在制作一个 chrome 扩展，其中包含一个 iframe。当扩展程序向服务器请求以获取页面时，它会返回一个错误Refused to display 'https://subdomain.example.com/' in a frame because it set 'X-Frame-Options' to 'deny'。虽然我已经在我的文件中设置了x-frame-optionsto并在我的后端项目的特定方法中添加了一个，但它返回了另一个错误。我在我的文件中添加了和。没有运气，它返回了，所以我从权限中删除并添加了 v3。没有结果！！然后我加了deny.htaccessheader('x-frame-options: GOFORIT')Refused to display 'https://subdomain.example.com/' in a frame because it set multiple 'X-Frame-Options' headers with conflicting values ('GOFORIT, DENY'). Falling back to 'deny'webRequestwebRequestBlockingpermissionsmanifest.json'webRequestBlocking' requires manifest version of 2 or lowerUnchecked runtime.lastError: You do not have permission to use blocking webRequest listeners. Be sure to declare the webRequestBlocking permission in your manifest.webRequestBlockingdeclarativeNetRequest

chrome.webRequest.onHeadersReceived.addListener(
    function(info) {
        var headers = info.responseHeaders;
        for (var i=headers.length-1; i>=0; --i) {
            var header = headers[i].name.toLowerCase();
            if (header == 'x-frame-options' || header == 'frame-options') {
                headers.splice(i, 1); // Remove header
            }
        }
        return {responseHeaders: headers};
    }, {
        urls: [
            '*://*/*', // Pattern to match all http(s) pages
            // '*://*.example.org/*', // Pattern to match one http(s) site
        ], 
        types: [ 'sub_frame' ]
    }, [
        'blocking',
        'responseHeaders',
        // Modern Chrome needs 'extraHeaders' to see and change this header,
        // so the following code evaluates to 'extraHeaders' only in modern Chrome.
        chrome.webRequest.OnHeadersReceivedOptions.EXTRA_HEADERS,
    ].filter(Boolean)
);

对我script.js来说，它回来了Uncaught TypeError: Cannot read properties of undefined (reading 'onHeadersReceived')

我应该怎么做才能只允许扩展向服务器请求？

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1 回答 1

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正如错误消息所说，一种解决方案是使用"manifest_version": 2and "webRequestBlocking"in "permissions"。

另一种解决方案是declarativeNetRequest，它是一个语法完全不同的新 API，因此您必须完全重写您的代码，这里有一个示例：link。

于 2021-09-14T11:53:05.207 回答