I think it was for window redirects, when we already had printed header files.

Perhaps you mean <meta http-equiv="refresh"...? The other way is with JavaScript, both methods can even be combined on the same page.

isn't there a way to have something execute before the headers?

If you mean on the server side, then you'd have to delay the output of the headers; once they've been sent to the client there is no way to take it back. But in general you can execute anything you like before you send the headers.

In reply to Re: Send before headers - in perl, by haukex
in thread Send before headers - in perl, by bizactuator

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