From cac1110993b4ea1d27ddc9b9928a9627393b983a Mon Sep 17 00:00:00 2001
From: Pierre Tachoire <pierre@lightpanda.io>
Date: Fri, 2 Feb 2024 15:21:33 +0100
Subject: [PATCH] xhr: add getResponseHeader

---
 src/xhr/xhr.zig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/xhr/xhr.zig b/src/xhr/xhr.zig
index ce623437..761f60e0 100644
--- a/src/xhr/xhr.zig
+++ b/src/xhr/xhr.zig
@@ -315,6 +315,10 @@ pub const XMLHttpRequest = struct {
         return if (self.response_bytes) |v| v else "";
     }
 
+    pub fn _getResponseHeader(self: *XMLHttpRequest, name: []const u8) ?[]const u8 {
+        return self.response_headers.getFirstValue(name);
+    }
+
     // The caller owns the string returned.
     // TODO change the return type to express the string ownership and let
     // jsruntime free the string once copied to v8.
@@ -371,6 +375,7 @@ pub fn testExecFn(
         .{ .src = "req.status", .ex = "0" },
         .{ .src = "req.statusText", .ex = "" },
         .{ .src = "req.getAllResponseHeaders()", .ex = "" },
+        .{ .src = "req.getResponseHeader('Content-Type')", .ex = "null" },
         .{ .src = "req.responseText", .ex = "" },
 
         .{ .src = "req.send(); nb", .ex = "0" },
@@ -380,6 +385,7 @@ pub fn testExecFn(
         .{ .src = "nb", .ex = "1" },
         .{ .src = "req.status", .ex = "200" },
         .{ .src = "req.statusText", .ex = "OK" },
+        .{ .src = "req.getResponseHeader('Content-Type')", .ex = "text/html; charset=UTF-8" },
         .{ .src = "req.getAllResponseHeaders().length > 1024", .ex = "true" },
         .{ .src = "req.responseText.length > 1024", .ex = "true" },
     };