Note that parseHeaders keeps header names as received.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: csev

lib/src/Util/Net.php

@@ -91,7 +91,10 @@ public static function getLastBODYDebug() {
     /**
      * Extract a set of header lines into an array
      *
-     * Takes a newline separated header sting and returns a key/value array
+     * Takes a newline separated header sting and returns a key/value array.
+     * Keys are kept as received (HTTP/2 and HTTP/3 send them lowercase).
+     * Header names are case-insensitive (RFC 7230 / RFC 9110), so look
+     * them up with U::getIgnoreCase() rather than U::get().
      */
     public static function parseHeaders($headerstr=false) {
         if ( $headerstr === false ) $headerstr = self::getLastHeadersReceived();