1 files changed, 12 insertions, 0 deletions
diff --git a/testing/web-platform/tests/xhr/setrequestheader-combining.window.js b/testing/web-platform/tests/xhr/setrequestheader-combining.window.js
new file mode 100644
index 0000000000..fc847eb79a
--- /dev/null
+++ b/testing/web-platform/tests/xhr/setrequestheader-combining.window.js
@@ -0,0 +1,12 @@
+test(() => {
+  const client = new XMLHttpRequest();
+  client.open("POST", "resources/inspect-headers.py?filter_name=test-me", false);
+  client.setRequestHeader("test-me", "");
+  client.setRequestHeader("test-me", "");
+  client.setRequestHeader("test-me", " ");
+  client.setRequestHeader("test-me", "\t");
+  client.setRequestHeader("test-me", "x\tx");
+  client.setRequestHeader("test-me", "");
+  client.send();
+  assert_equals(client.responseText, "test-me: , , , , x\tx, \n");
+}, "setRequestHeader() combining header values");