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Editorial Team
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Asked: 2026-06-13T02:59:19+00:00

I have a CI controller that outputs some JS variables (mainly language variables). I

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I have a CI controller that outputs some JS variables (mainly language variables). I set the MIME type using header function, etc. So, it’s really JS when it’s outputted.

Looking at the header responses, I see session data being returned. As an optimization, I would like to prevent that from being returned (saved a few bytes). Is there a way for me to do this?

For my regular JS, CSS, etc. files, I put them on a sub-domain that does not set session/cookies. But since JS this is coming from my application’s controller, it has session data.

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1 Answer

  1. Editorial Team

    As long as headers (which cookies are) have not been sent already, the header_remove function can be used to remove them before they are send to the browser.

    It might be that this makes especially sense as codeigniter sends all session data as a round-trip.

    To inspect outgoing headers, PHP’s headers_list function is handy.

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