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Editorial Team
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Asked: 2026-06-12T23:56:20+00:00

I have a single page application which create and remove a number of iframe

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I have a single page application which create and remove a number of iframe based on user input. each iframe could contain a jqgrid, a form for input submission with jquery.validate plugin etc…

the main page could access all the iframes to retrieve current operation status and some data to rebuild the main menu.

is safe to just remove the iframes or i need to .empty() the body before removing them?

EDIT:

when i say “retrieve current operation status and some data” i actually access the iframe properties using something like this

jqueryFrameObject[0].contextWindow.myCoolProperty

but never cache the object in the main page

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1 Answer

  1. Editorial Team

    No : jQuery takes care of removing the elements which could lead to memory leaks :

    In addition to the elements themselves, all bound events and jQuery data associated with the elements are removed.

    If you don’t keep other pointers (including hidden ones based for example on closures), you’ll be safe. Be careful not to use the native addEventListener if you don’t want to keep hidden links to your removed elements.

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