| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <p>Text</p> | |
| <script> | |
| const observer = new PerformanceObserver(entryList => { | |
| window.parent.triggerTest(entryList.getEntries()[0]); | |
| }); | |
| observer.observe({type: 'largest-contentful-paint', buffered: true}); | |
| </script> | |
| </body> | |
| </html> |