Function injectScript

apps/background/background.js:300–302

()

                                        ]).then(([js, css]) => {
                                            const invokeNoPage = () => InjectTools.inject(tab.id, invokeConfig);
                                            const injectScript = () => js
                                                ? InjectTools.inject(tab.id, { js }, invokeNoPage)
                                                : invokeNoPage();

                                            if (css) {
                                                InjectTools.inject(tab.id, { css }, injectScript);