fix mime of svg image

public/internal/getImage.php

@@ -6,8 +6,10 @@ if( isset( $_GET['imgID'] ) )
 {
     if($_GET['imgID'] == "1") {
         $url = "https://ipv6.he.net/certification/create_badge.php?pass_name=jonasled&badge=3";
+        $mime = "image/png";
     } else if($_GET['imgID'] == "2"){
         $url = "https://www.abuseipdb.com/contributor/45130.svg";
+        $mime = "image/svg+xml";
     } else {
         die("wrong image id");
     }
@@ -18,7 +20,7 @@ else
 }
 
 $imginfo = getimagesize( $url );
-header("Content-type: ".$imginfo['mime']);
+header("Content-type: ".$mime);
 readfile( $url );
 
 ?>
\ No newline at end of file