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Editorial Team
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Asked: 2026-05-16T00:18:07+00:00

I noticed that some websites (for example: apple.com or disqus.com) don’t send AJAX request

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I noticed that some websites (for example: apple.com or disqus.com) don’t send AJAX request to load, for example, live search results. Instead they attach new JS script, that holds all results in a variable.

To be more specific. If you go to apple.com and type “test” into the searcher. It won’t send an AJAX request to get the results, instead it will add < script src=”some.addres.apple.com/result.js?q=test” > to the HTML and execute new piece of JS script to bring in the search results.
improvement
Are they doing this only because you can’t send AJAX request to a different domain, or is there any speed improvement possible?

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1 Answer

  1. Editorial Team

    There is a lot of discussion online of the “hackishness” of JSONP:

    I have found it to be extremely useful in getting around cross-domain security limitations but I have not seen nor have I heard of any speed improvements.

    I highly recommend learning more about JSONP (especially when it is useful/necessary).

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