| let serveImporterScript = false; |
| |
| self.addEventListener('message', event => { |
| serveImporterScript = true; |
| event.source.postMessage('Done'); |
| }); |
| |
| self.addEventListener('fetch', event => { |
| if (event.request.url.indexOf('test-helper-iframe.js') >= 0) { |
| return; |
| } |
| if (serveImporterScript) { |
| serveImporterScript = false; |
| event.respondWith( |
| new Response( |
| 'window.importHelper = (specifier) => import(specifier);', |
| {headers: {'Content-Type': 'text/javascript'}} |
| )); |
| } else { |
| event.respondWith( |
| new Response( |
| 'export const response = ' + |
| JSON.stringify({url: event.request.url}) + ';', |
| {headers: {'Access-Control-Allow-Origin': '*', |
| 'Content-Type': 'text/javascript'}} |
| )); |
| } |
| }); |
