Fixed ignored headers not properly being ignored because of case

- Also ignore forgotten X-Proxy-Cookie

Author: Svish

proxy.php

@@ -25,13 +25,12 @@
 
 
 // Remove ignored headers and prepare the rest for resending
-$ignore = ['Cookie', 'Host', 'X-Proxy-URL'];
-$headers = array_diff_key($headers, array_flip($ignore));
+$ignore = ['cookie', 'host', 'x-proxy-url', 'x-proxy-cookie'];
+$headers = array_diff_key(array_change_key_case($headers), array_flip($ignore));
 if($cookie)
 	$headers['Cookie'] = $cookie;
 foreach($headers as $key => &$value)
-	$value = "$key: $value";
-
+	$value = ucwords($key, '-').": $value";
 
 // Init curl
 $curl = curl_init();

test/echo.php

@@ -13,5 +13,7 @@
 header('Content-Type: application/json; charset=utf-8');
 header('X-Test-Header: This header should come back through');
 setcookie('Test-Cookie', uniqid());
+session_name('Test-Session');
+session_start();
 
 echo json_encode($info, JSON_PRETTY_PRINT | JSON_NUMERIC_CHECK | JSON_FORCE_OBJECT);