Re-send comment problem u Firefoxu

Pozz, napravio sam 1 skriptu sa komentarima i sve radi, samo je problem sto kad refresham stranicu u FF duplira komentar a u Operi i Chrome ne

evo cijeli comments.php

<h4 class="h3-title">Comments</h4><small><?php if    (!isset($_SESSION['username'])) { echo 'You must be looged in to post comments'; } ?></small>
<hr />

<?php

// list all comments
if (isset($_GET['id']))
{
 	$id = (int)$_GET['id'];

$list_all_comments = $comments->list_comments($id);

foreach ($list_all_comments as $comm) 
{
	echo '<i>' . $comm['comment_author'] . ' - <small>' . date('m F Y h.m.s', $comm['comment_date']) . '</small></i><br />';
	echo '<p>' . $comm['comment_body'] . '</p><hr />';
}
}

// show comment form only for logged in users
if (isset($_SESSION['username']))
{

// form process
if (isset($_POST['comment']))
{
	if (isset($_GET['id']))
	{
		$news_id 	= (int)$_GET['id'];
		$author 	= $_SESSION['username'];
		$body 		= trim(htmlentities($_POST['body']));
		$date 		= time();

		if (!empty($body))
		{
			// add_comment($author, $body, $date, $news_id)
			$insert_comment = $comments->add_comment($author, $body, $date, $news_id);

			// refresh page after form is submited
			echo '<meta http-equiv="refresh" content="0">';
		}
	}	
}

?>

<form action="" method="POST">
<textarea name="body" cols="75" rows="6" autofocus required></textarea><br />
<input type="submit" name="comment" value="Submit">
</form>

<?php } ?>

Problem rjesen :stuck_out_tongue:

echo '<meta http-equiv="refresh" content="0">';

Promjenito u

header('Location: news.php?id='.$news_id);
exit();

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