Send an AJAX event on beforeunload confirmation

Asked Jan 08 '14 at 07:13

Active Feb 21 '20 at 19:12

Viewed 218 times

I have a page where a person can query a large database (often can take half a minute or more). I want to do the following:

User tries to navigate away from page.
Show a dialogue confirming they wish to leave the page and lose their query progress. (Use beforeunload)
If the user clicks "confirm", then I want to kill the query (via AJAX) before allowing them to navigate away. (use unload, but how can I get the page to not exit before ajax completes?)

Is this possible?

edited Feb 21 '20 at 19:12

asked Jan 08 '14 at 07:13

Don P

possible duplicate of [jQuery: Automatically abort AjaxRequests on Page Unload?](http://stackoverflow.com/questions/600494/jquery-automatically-abort-ajaxrequests-on-page-unload) – brandonscript Jan 08 '14 at 18:01
Im not trying to abort an ajax request on page unload. I'm trying to send a *new* ajax request :) – Don P Jan 08 '14 at 18:04
The premise is the same though. Instead of sending the abort, send a new request. – Joe C Jan 08 '14 at 18:08
But the page will unload before the ajax completes – Don P Jan 08 '14 at 18:11
Why does the query-killer need to return anything? Send the message to kill it and let them go on their way. – Joe C Jan 08 '14 at 18:21
@DonnyP "kill the query (via AJAX)" led me to believe ...... :) – brandonscript Jan 08 '14 at 18:25
@phantom42 good point. thanks – Don P Jan 08 '14 at 18:58

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