Add Access-Control-Allow-Origin header

Author: darthmaim

src/.htaccess

@@ -19,4 +19,5 @@ RewriteRule cache/16/([^-]+)-([0-9]+)\.png icon.php?icon_file_signature=$1&icon_
 
 <FilesMatch "\.png$">
   Header set Cache-Control "max-age=31536000, public, immutable"
+  Header set Access-Control-Allow-Origin "*"
 </FilesMatch>

src/icon.php

@@ -177,6 +177,7 @@ function setCacheHeader( $file ) {
     header('Last-Modified: '.gmdate('D, d M Y H:i:s', $mtime).' GMT', true, 200);
     header('Expires: '.gmdate('D, d M Y H:i:s',  $mtime + $secondsToCache).' GMT', true, 200);
     header('Content-Type: image/png');
+    header('Access-Control-Allow-Origin: *');
   }
 
   $icon_file_id = $_GET['icon_file_id'];