Laravel is adding/removing characters when using HTTPS - php

Question

I have some zip files in my laravel project and they were downloaded by simple method
return response()->download($path);
now I added forcing https to the website with this:
if (!(isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' ||
$_SERVER['HTTPS'] == 1) ||
isset($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
$_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'))
{
$redirect = 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
header('HTTP/1.1 301 Moved Permanently');
header('Location: ' . $redirect);
exit();
}
and now I can't read the zip files, they seem corrupted.
I opened one of them in hex editor, and I see that there is an additional 0a0a character at the beginning.
I have no idea why this happens and what that means. And especially how to fix it, without editing the downloaded files.

Answer 1

It might be your headers try looking at this blog post and see if that is the fix to your issues.
https://perishablepress.com/http-headers-file-downloads/
<?php // HTTP Headers for ZIP File Downloads
// https://perishablepress.com/press/2010/11/17/http-headers-file-downloads/
// set example variables
$filename = "Inferno.zip";
$filepath = "/var/www/domain/httpdocs/download/path/";
// http headers for zip downloads
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"".$filename."\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($filepath.$filename));
ob_end_flush();
#readfile($filepath.$filename);
?>