The whole page become blank after redirecting with @header() in IE6

Question

It's a login page,after validating,the user is redirected to home page:

@header("Content-type: text/html; charset=utf-8");
@header('Location: index.php');
@header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
@header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past

But the page become blank if IE6!How?And it happens only for the first time,afterwards it'll work normally!

Answer 1

Why are you suppressing the warnings/errors that might be happening? I'd say get rid of the @ first, and then tell us what is really going on.

Answer 2

header() won't work if there's any output already been sent. This includes spaces, empty lines or whatever. Make sure that there's strictly nothing being output before calling header.

Works:

<?php
header('Location: index.php');
?>

Does not work

 <?php
header('Location: index.php');
?>

And remove the @, it eats up any useful info header tries to give you.

Answer 3

You can also redirect using javascript from client side:

Instead of :

@header('Location: index.php');

Client-side redirect:

echo "<script>document.location.replace('index.php');</script>";

Answer 4

I have been searching for an answer to a similar problem to yours for an hour or so. IE6 seems to have a problem with zipped content. Simply disabling mod_deflate on our server fixed the problem for IE6. Specifically version 6.0.29 appears to exhibit this bug.

Take a look at http://www.contentwithstyle.co.uk/content/moddeflate-and-ie6-bug