Function _injectLogBridge

apps/background/monkey.js:316–381

(tabId, allFrames, frameId)

// 通过 window.postMessage 接收 MAIN world 抛出的日志，再转发到 background。
// 返回 Promise，调用方需 await 以保证桥接器在 user script 之前就位（否则启动期日志会丢）。
const _injectLogBridge = (tabId, allFrames, frameId) => {
    try {
        return chrome.scripting.executeScript({
            target: _buildTarget(tabId, allFrames, frameId),
            func: function () {
                if (window.__fhMonkeyBridgeReady) return;
                window.__fhMonkeyBridgeReady = true;
                window.addEventListener('message', function (e) {
                    if (!e || !e.data) return;
                    var d = e.data;
                    // 1) 日志桥
                    if (d.__fh_monkey_log === true) {
                        try {
                            chrome.runtime.sendMessage({
                                type: 'fh-dynamic-any-thing',
                                thing: 'page-monkey-log',
                                params: d.payload || {}
                            });
                        } catch (_) {}
                        return;
                    }
                    // 2) @require 代理：通过 background fetch 远程脚本，
                    //    避免页面 CSP/CORS 限制 MAIN world 直接 fetch
                    if (d.__fh_monkey_require === true && d.url && d.reqId) {
                        var reqId = d.reqId, url = d.url;
                        try {
                            chrome.runtime.sendMessage({
                                type: 'fh-dynamic-any-thing',
                                thing: 'page-monkey-require-fetch',
                                params: { url: url }
                            }, function (resp) {
                                try {
                                    window.postMessage({
                                        __fh_monkey_require_resp: true,
                                        reqId: reqId,
                                        ok: !!(resp && resp.ok),
                                        text: (resp && resp.text) || '',
                                        err: (resp && resp.err) || ''
                                    }, '*');
                                } catch (_) {}
                            });
                        } catch (err) {
                            try {
                                window.postMessage({
                                    __fh_monkey_require_resp: true,
                                    reqId: reqId, ok: false, text: '',
                                    err: String(err && err.message || err)
                                }, '*');
                            } catch (_) {}
                        }
                    }
                }, false);
            },
            world: 'ISOLATED',
            injectImmediately: true
        }).catch((err) => {
            log({
                id: '__bridge__', name: 'page-monkey', level: 'error',