mbutki/unload-testing

Testing different events for signaling a page unload

unload-testing

Testing different events for signaling a page unload

• public/index.html: Contains examples of visibilitychange, pagehide, unload, beforeunload, which you can manually play around with.
• public/empty.html: Used by aceptance tests to automatically confirm the workings of thos same event listeners.

Chrome-Headless Automated Testing Results

Closing tab

✓ should post on window.onbeforeunload (5058ms)

✓ should post on window.onunload (5047ms)

✓ should post on window.onpagehide (5034ms)

✓ should post on window.addEventListener('beforeunload' (6709ms)

✓ should post on window.addEventListener('unload' (5044ms)

✓ should post on document.addEventListener('visibilitychange' (5043ms)

✓ should post on window.addEventListener('pagehide' (5043ms)

Navigating tab

✓ should post on window.onbeforeunload (5049ms)

✓ should NOT post on window.onunload (5062ms)

✓ should NOT post on window.onpagehide (5082ms)

✓ should post on window.addEventListener('beforeunload' (5067ms)

✓ should NOT post on window.addEventListener('unload' (5046ms)

✓ should NOT post on document.addEventListener('visibilitychange' (5068ms)

✓ should NOT post on window.addEventListener('pagehide' (5063ms)

Manual Testing Results

Firefox

Navigate tab to different website

1. window.onbeforeunload

Close tab

1. window.onbeforeunload

Safari

Navigate tab to different website

1. window.onbeforeunload
2. window.onpagehide

Close tab

1. window.onbeforeunload