Safari Web 扩展消息传递未按预期工作

Question

我正在尝试从 popup.js 向 content.js 脚本发送消息，但 content.js 脚本未收到该消息。 content.js 似乎没有从弹出窗口或后台脚本接收消息。

popup.js

window.onload = function() {
    browser.tabs.query({active: true, currentWindow: true}, function(tabs) {
        browser.tabs.sendMessage(tabs[0].id, { greeting: "hello from the popup" });
        browser.runtime.sendMessage({ tabId: tabs[0].id, greeting: "Going to background?"});
        debugger;
    });
}

内容.js

browser.runtime.onMessage.addListener((request, sender, sendResponse) => {
    console.log("Received request: ", request);
    return true;
});

background.js——这个确实收到了消息

browser.runtime.onMessage.addListener((request, sender, sendResponse) => {
    console.log("Received request in the bg: ", request);

    browser.tabs.sendMessage(request.tabId, "Sent from bg");
});

manifest.json

{
    "manifest_version": 3,

    "name": "__MSG_extension_name__",
    "description": "__MSG_extension_description__",
    "version": "1.0",

    "background": {
        "scripts": [ "background.js" ],
        "type": "module"
    },

    "content_scripts": [{
        "js": [ "content.js" ],
        "matches": [ "*://*/*" ],
        "run_at": "document_end",
    }],

    "action": {
        "default_popup": "popup.html",
        "default_icon": "images/toolbar-icon.svg"
    },

    "permissions": [
        "activeTab",
        "nativeMessaging"
    ]
}

Answer 1

我注意到你的清单版本是3；然而，MV3 上不再有背景脚本了。让我们尝试 MV2，看看您的内容脚本是否收到消息。