background发消息给content

    科技2022-07-10  171

    //background.js chrome.tabs.query({active: true, currentWindow: true}, function(tabs) { chrome.tabs.sendMessage(tabs[0].id,{from:'background发出的消息1',to:'content_scripts发出的消息2'}, function(response) { alert('收到content_scripts回复结果:'+response); }); }); //content_scripts.js chrome.extension.onMessage.addListener( function(request, sender, sendResponse) { alert('我收到消息' + request.from + request.to); sendResponse("content_scripts回复处理结果"); } ); background 访问 popup 如下(前提是 popup 已经打开) var views = chrome.extension.getViews({ type: "popup" }); console.log("---views---", views); if (views.length > 0) { console.log(views[0].location.href); }
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