LibWeb/XHR: Isomorphic decode accessing XMLHttpRequest response headers

Fixes a crash on: https://wpt.live/html/browsers/browsing-the-web/navigating-across-documents/refresh/subresource.any.html
Author: https://github.com/shannonbooth Commit: e74ca82083 Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3111 Reviewed-by: https://github.com/AtkinsSJ ✅
2025-08-17 07:50:04 +00:00 · 2025-01-03 18:03:42 +13:00 · 2025-01-03 18:03:42 +13:00 · e74ca82083 · 2025-01-15 12:36:55 +00:00
commit e74ca82083
parent 731c2365b6
4 changed files with 47 additions and 14 deletions
--- a/Tests/LibWeb/Text/expected/XHR/XMLHttpRequest-response-header-decoding.txt
+++ b/Tests/LibWeb/Text/expected/XHR/XMLHttpRequest-response-header-decoding.txt
@ -0,0 +1,4 @@
+getAllResponseHeaders()
+refresh: 0;./refreshed.txt?ÿ
+
+getResponseHeader("Refresh") => '0;./refreshed.txt?ÿ'