license System . config ( { defaultJSExtensions : true } ) ; System . import ( '../lib/browser/api-util' ) . then ( ( ) => { System . import ( '../lib/browser/browser-legacy' ) . then ( ( ) => { System . import ( '../lib/browser/browser' ) . then ( ( ) => { const _global = typeof window !== 'undefined' ? window : self ; Zone . current . fork ( { name : 'webworker' } ) . run ( ( ) => { const websocket = new WebSocket ( 'ws://localhost:8001' ) ; websocket . addEventListener ( 'open' , ( ) => { websocket . onmessage = ( ) => { if ( ( < any > self ) . Zone . current . name === 'webworker' ) { ( < any > self ) . postMessage ( 'pass' ) ; } else { ( < any > self ) . postMessage ( 'fail' ) ; } websocket . close ( ) ; } ; websocket . send ( 'text' ) ; } ) ; } ) ; } , ( e ) => ( < any > self ) . postMessage ( `error ${ e . message }` ) ) ; } ) ; } ) ;