Runtime onMessage listener - servicer worker

runtime-onMessage.listener.js

chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
    if (sender.tab && request.type === DISABLE_ICON) {
        setIconOff()
    }
    ...
    // Provide internationalization translations at content script request
    if (sender.tab && request.type === "internationalization") {
        // Extract language from user settings
        const store = getStore()
        const state = store.getState()
        const language = userGetters.getUserLanguage(state)
        // Return translations available
        sendResponse(i18n.getDataByLanguage(language))
    }
})