PHP发送应用程序/ zip MIME但Chrome认为它是文档

Question

I'm using PHP to download a file like this:

index.php

<?php

// no code above, file starts and ends exactly like this sample
$u = filter_input(INPUT_SERVER,'REQUEST_URI',FILTER_SANITIZE_STRING);

// Just to test Chrome with and without .zip at the end of URL to see
// if Chrome act any different
if ($u!='/download/xsi1nc3su' && $u!='/download/xsi1nc3su.zip'){

   echo 'Wrong URL';
   die();

}else{

   $file = __DIR__.'/1.zip';

   // I've checked both of these lines and result is the same:
   // header('Content-type: '.mime_content_type($file));
   // header('Content-type: application/zip'); 

   header('Content-Description: File Transfer');
   header('Content-type: application/zip');
   header('Content-Disposition: attachment; filename=download.zip');
   header('Content-Transfer-Encoding: binary');
   header('Connection: Keep-Alive');
   header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60)));
   header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
   header('Pragma: public');
   header('Content-Length: '.filesize($file));

   flush();
   readfile($file);
   exit;
}

.htaccess

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^ index.php [L]
</IfModule>

As you can see all URLs coming to index.php and when I use URL like (Paste directly to the browser):

http://127.0.0.1/download/xsi1nc3su.zip

or

http://127.0.0.1/download/xsi1nc3su

Chrome console shows me this warning:

Resource interpreted as Document but transferred with MIME type application/zip

I've read about this warning in this and this posts. They want to solve the problem by adding empty download in a tag (Which can only solve the problem when using download URL inside HTML link) or adding correct type to the header.

Since I'm sending correct MIME and just copy and paste the URL. I don't know where is the problem.

Please let me know, if you cannot reproduce it. I can provide my sample .zip file. My zip file contains a simple text file, created by Archive Manager on Ubuntu.

More Information

• Chrome: Version 75.0.3770.100 (Official Build) (64-bit) Linux

• Apache: Server version: Apache/2.4.29 (Ubuntu)

• PHP: PHP 7.2.19-0ubuntu0.18.04.1

I've noticed even direct file giving me the same warning:

Checked with Hexadecimal Editor. seems original and downloaded files are the same:

Original File:

50 4B 03 04 14 00 08 00 08 00 3A 2F E6 4E 00 00 00 00 00 00 00 00 AD 03 00 00 09 00 20 00 69 6E 64 65 78 2E 70 68 70 55 54 0D 00 07 D1 9A 20 5D D6 9A 20 5D D1 9A 20 5D 75 78 0B 00 01 04 00 00 00 00 04 00 00 00 00 8D 52 51 6F D3 30 10 7E CF AF 38 A4 4A 4E A0 6D 36 21 ED 21 A5 42 13 CD 46 44 57 8D 34 05 81 2A 45 6E 72 6D AC 25 B6 65 3B 5D 3B C4 7F C7 4E D6 07 0A 43 3C F8 E1 EE BE FB EE FB CE F7 EE BD AC A4 E7 85 21 70 01 85 28 11 E8 46 EC 71 08 5B 56 23 68 43 95 D1 40 79 09 C8 4B 0D 78 A0 85 A9 8F 50 B3 07 04 53 31 0D 9A 36 B2 46 6F D0 C2 D4 B5 18 54 39 E3 B2 35 7E B2 B8 5F 65 F9 32 4E BF C4 E9 90 A4 F1 E7 55 BC CC F2 55 9A 90 E1 4D 32 CF E2 34 5F 5E 2F 92 2C F9 1E E7 CB 2C 4D 16 B7 C1 C4 C3 A2 12 30 68 27 1E DB 82 3F 68 5F 4D 49 58 8A 47 5E 0B 5A 86 07 CD 2E 79 F1 56 B7 24 F8 E1 01 40 87 25 5F 95 E0 3B 58 A5 73 32 71 C9 92 A1 6F 79 7E 62 AD B1 43 0D 3A 1B 53 C8 F3 59 92 E6 F9 98 84 97 E3 27 26 2D DA 55 AD EB 84 EC 11 8A 0A 8B 07 2C 61 23 4C 05 62 6B 9D A1 46 6B 92 63 EF DD C6 A0 50 B7 B5 01 6B D9 45 D6 36 46 CF 14 15 D2 12 95 4F 3E 08 6E 90 9B 91 39 4A 8C 80 8C 1B D6 60 5E F4 C9 DC 25 FD 4E 4D 10 4C FE D9 48 A5 AC 59 41 0D 13 3C 74 52 83 09 74 62 CF D1 33 D4 85 62 D2 E1 22 B8 71 36 33 45 B9 DE A2 22 FD 84 FF A5 FF 2B 39 D3 52 68 D6 93 53 63 68 51 35 36 3F E9 CE 82 5B F3 D3 D3 C7 8C 5F 26 39 E9 19 C5 DC 5E 16 E3 BB 08 36 8C 53 75 FC 13 CF B1 E8 67 7D 42 94 A3 EB 9A ED F1 0C 14 1F 24 B3 7F E0 16 BB 6B 4A 6A D0 27 B3 21 94 70 07 DF E0 63 C4 22 0D EB DB F5 DD 3A 23 43 30 76 F1 7E 00 6F C0 BF BA 80 D7 70 75 11 04 67 03 AD 1D 1C 39 99 4A D4 11 34 AD 36 23 85 7B 5A 33 47 3C 04 6B DD 8C BA A3 98 5E D8 48 E1 29 38 D3 74 AF E8 AE A1 11 C8 76 63 77 FA C2 16 E6 C8 77 A6 72 BA DD EE 34 7B FA FD 0E DC DB D6 AD AE FC 3E 56 B6 DD 95 9F 41 5D 0E 0F CC D8 AB F6 7E 01 50 4B 07 08 F4 36 42 1F 0A 02 00 00 AD 03 00 00 50 4B 01 02 14 03 14 00 08 00 08 00 3A 2F E6 4E F4 36 42 1F 0A 02 00 00 AD 03 00 00 09 00 20 00 00 00 00 00 00 00 00 00 FF 81 00 00 00 00 69 6E 64 65 78 2E 70 68 70 55 54 0D 00 07 D1 9A 20 5D D6 9A 20 5D D1 9A 20 5D 75 78 0B 00 01 04 00 00 00 00 04 00 00 00 00 50 4B 05 06 00 00 00 00 01 00 01 00 57 00 00 00 61 02 00 00 00 00

Downloaded File:

50 4B 03 04 14 00 08 00 08 00 3A 2F E6 4E 00 00 00 00 00 00 00 00 AD 03 00 00 09 00 20 00 69 6E 64 65 78 2E 70 68 70 55 54 0D 00 07 D1 9A 20 5D D6 9A 20 5D D1 9A 20 5D 75 78 0B 00 01 04 00 00 00 00 04 00 00 00 00 8D 52 51 6F D3 30 10 7E CF AF 38 A4 4A 4E A0 6D 36 21 ED 21 A5 42 13 CD 46 44 57 8D 34 05 81 2A 45 6E 72 6D AC 25 B6 65 3B 5D 3B C4 7F C7 4E D6 07 0A 43 3C F8 E1 EE BE FB EE FB CE F7 EE BD AC A4 E7 85 21 70 01 85 28 11 E8 46 EC 71 08 5B 56 23 68 43 95 D1 40 79 09 C8 4B 0D 78 A0 85 A9 8F 50 B3 07 04 53 31 0D 9A 36 B2 46 6F D0 C2 D4 B5 18 54 39 E3 B2 35 7E B2 B8 5F 65 F9 32 4E BF C4 E9 90 A4 F1 E7 55 BC CC F2 55 9A 90 E1 4D 32 CF E2 34 5F 5E 2F 92 2C F9 1E E7 CB 2C 4D 16 B7 C1 C4 C3 A2 12 30 68 27 1E DB 82 3F 68 5F 4D 49 58 8A 47 5E 0B 5A 86 07 CD 2E 79 F1 56 B7 24 F8 E1 01 40 87 25 5F 95 E0 3B 58 A5 73 32 71 C9 92 A1 6F 79 7E 62 AD B1 43 0D 3A 1B 53 C8 F3 59 92 E6 F9 98 84 97 E3 27 26 2D DA 55 AD EB 84 EC 11 8A 0A 8B 07 2C 61 23 4C 05 62 6B 9D A1 46 6B 92 63 EF DD C6 A0 50 B7 B5 01 6B D9 45 D6 36 46 CF 14 15 D2 12 95 4F 3E 08 6E 90 9B 91 39 4A 8C 80 8C 1B D6 60 5E F4 C9 DC 25 FD 4E 4D 10 4C FE D9 48 A5 AC 59 41 0D 13 3C 74 52 83 09 74 62 CF D1 33 D4 85 62 D2 E1 22 B8 71 36 33 45 B9 DE A2 22 FD 84 FF A5 FF 2B 39 D3 52 68 D6 93 53 63 68 51 35 36 3F E9 CE 82 5B F3 D3 D3 C7 8C 5F 26 39 E9 19 C5 DC 5E 16 E3 BB 08 36 8C 53 75 FC 13 CF B1 E8 67 7D 42 94 A3 EB 9A ED F1 0C 14 1F 24 B3 7F E0 16 BB 6B 4A 6A D0 27 B3 21 94 70 07 DF E0 63 C4 22 0D EB DB F5 DD 3A 23 43 30 76 F1 7E 00 6F C0 BF BA 80 D7 70 75 11 04 67 03 AD 1D 1C 39 99 4A D4 11 34 AD 36 23 85 7B 5A 33 47 3C 04 6B DD 8C BA A3 98 5E D8 48 E1 29 38 D3 74 AF E8 AE A1 11 C8 76 63 77 FA C2 16 E6 C8 77 A6 72 BA DD EE 34 7B FA FD 0E DC DB D6 AD AE FC 3E 56 B6 DD 95 9F 41 5D 0E 0F CC D8 AB F6 7E 01 50 4B 07 08 F4 36 42 1F 0A 02 00 00 AD 03 00 00 50 4B 01 02 14 03 14 00 08 00 08 00 3A 2F E6 4E F4 36 42 1F 0A 02 00 00 AD 03 00 00 09 00 20 00 00 00 00 00 00 00 00 00 FF 81 00 00 00 00 69 6E 64 65 78 2E 70 68 70 55 54 0D 00 07 D1 9A 20 5D D6 9A 20 5D D1 9A 20 5D 75 78 0B 00 01 04 00 00 00 00 04 00 00 00 00 50 4B 05 06 00 00 00 00 01 00 01 00 57 00 00 00 61 02 00 00 00 00