Access extensions in the chrome://extensions page [duplicate]

问题

Here is my mainfest.json:

"content_scripts": [ {
    "all_frames": true,
    "css": [ "css/event.css" ],
    "matches": [ "\u003Call_urls>" ],
    "run_at": "document_start"
}

but I cannot find content script in the chrome://extensions/ page
help!!!

回答1:

You can do it on your PC by enabling chrome://flags/#extensions-on-chrome-urls and adding the necessary url, chrome://extensions/, into "matches" in manifest.json but such extension won't be possible to install on a normal browser due to an invalid scheme error.

To avoid the fatal error, don't use manifest.json to inject the content script/style, do it manually in the background or popup script via chrome.tabs.insertCSS or chrome.tabs.executeScript:

chrome://flags: enable Extensions on chrome:// URLs flag

manifest.json:

"permissions": ["chrome://*/*", "tabs"],
"background": {
    "scripts": ["background.js"]
},

background.js:

var chromeURLstylable;
chrome.permissions.contains({origins: ["chrome://*/*"], permissions: ["tabs"]}, function(state) {
    chromeURLstylable = state;
    console.log("chrome:// urls support", state);

    if (chromeURLstylable) {
        chrome.tabs.onUpdated.addListener(function(tabId, info, tab) {
            if (info.status == "loading" && tab.url.indexOf("chrome://") == 0) {
                chrome.tabs.insertCSS({
                    file: "style.css", 
                    runAt: "document_start",
                    allFrames: true
                });
            }
        });
    }
});

Beware of possible problems submitting such extension to the Chrome Webstore.

来源：https://stackoverflow.com/questions/33891245/access-extensions-in-the-chrome-extensions-page

标签

javascript

google-chrome-extension