Jesse Bonzo created WICKET-4909:
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Summary: ModalWindow overwrites window.onbeforeunload
Key: WICKET-4909
URL: https://issues.apache.org/jira/browse/WICKET-4909
Project: Wicket
Issue Type: Improvement
Components: wicket-extensions
Affects Versions: 6.3.0
Reporter: Jesse Bonzo
Priority: Minor
If window.onbeforeunload is changed after a ModalWindow is opened the change is
lost when the ModalWindow is closed. I expected calling
ModalWindow#showUnloadConfirmation(false) would fix this, but the javascript
for the modal window unconditionally overwrites window.onbeforeunload. I
suggest checking settings.unloadConfirmation before overwriting
window.onbeforeunload.
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