author Santo Pfingsten
 *  see https import { browser } from "webextension-polyfill-ts" ; const vcsHost = "github" ; const vcsUser = "lusito" ; const vcsRepository = "forget-me-not" ; window . addEventListener ( "message" , ( event ) => { if ( event . source === window && event . data && event . data . action === "WetApplyLanguage" && vcsHost === event . data . vcsHost . toLowerCase ( ) && vcsUser === event . data . vcsUser . toLowerCase ( ) && vcsRepository === event . data . vcsRepository . toLowerCase ( ) ) { browser . runtime . sendMessage ( { action : "WetApplyLanguage" , language : event . data . language } ) ; } } ) ; window . postMessage ( { action : "EnableWebExtensionMode" } , "*" ) ;