Can I pop up a confirmation dialog when the user is closing the window in Safari/Chrome?

by

This works perfectly for me in both Chrome and Safari:

<html><body><p>Test</p>
<script>window.onbeforeunload = function() { return "Sure?"; }</script>
</body></html>

When I try to close the window, I get the prompt.

More Related Contents:

  1. Get the real width and height of an image with JavaScript? (in Safari/Chrome)
  2. How can I force WebKit to redraw/repaint to propagate style changes?
  3. Is it possible to display a custom message in the beforeunload popup?
  4. Video auto play is not working in Safari and Chrome desktop browser
  5. :not() selector not behaving the same between Safari and Chrome/Firefox
  6. Unexpected token ILLEGAL in webkit
  7. Date parsing in javascript is different between safari and chrome
  8. Open Safari / Google Chrome developer tools programmatically from JavaScript
  9. Setting onbeforeunload on body element in Chrome and IE using jQuery
  10. Prevent Address-Bar hiding in mobile Browsers
  11. Distinguish Chrome from Safari using jQuery.browser
  12. Webkit bug with `:hover` and multiple adjacent-sibling selectors
  13. Preventing cache on back-button in Safari 5
  14. javascript large integer round because precision? (why?)
  15. Disabling same-origin policy in Safari
  16. Difference between onbeforeunload and onunload
  17. What happens when localStorage is full?
  18. Safari ignoring tabindex
  19. Hiding textarea resize handle in Safari
  20. How to disable a “Reload site? Changes you made may not be saved” popup for (python) selenium tests in chrome?
  21. Selecting text on focus using jQuery not working in Safari and Chrome
  22. Chrome, Safari ignoring max-width in table
  23. What heuristics do browsers use to cache resources not explicitly set to be cachable?
  24. chrome/safari display border around image
  25. Silence net::ERR_CONNECTION_REFUSED
  26. Chrome and Safari XSLT using JavaScript
  27. WebKit CSS content Unicode bug?
  28. Chrome & Safari Error::Not allowed to load local resource: file:///D:/CSS/Style.css
  29. Select size attribute size not working in Chrome/Safari?
  30. WebDriverException: Message: Service /content/chromedriver unexpectedly exited. Status code was: -6 with ChromeDriver Google Colab and Selenium

Leave a Comment