1 files changed, 23 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/h1-parsing/lone-cr.window.js b/testing/web-platform/tests/fetch/h1-parsing/lone-cr.window.js
new file mode 100644
index 0000000000..6b46ed632f
--- /dev/null
+++ b/testing/web-platform/tests/fetch/h1-parsing/lone-cr.window.js
@@ -0,0 +1,23 @@
+// These tests expect that a network error is returned if there's a CR that is not immediately
+// followed by LF before reaching message-body.
+//
+// No browser does this currently, but Firefox does treat it equivalently to a space which gives
+// hope.
+
+[
+  "HTTP/1.1\r200 OK\n\nBODY",
+  "HTTP/1.1 200\rOK\n\nBODY",
+  "HTTP/1.1 200 OK\n\rHeader: Value\n\nBODY",
+  "HTTP/1.1 200 OK\nHeader\r: Value\n\nBODY",
+  "HTTP/1.1 200 OK\nHeader:\r Value\n\nBODY",
+  "HTTP/1.1 200 OK\nHeader: Value\r\n\nBody",
+  "HTTP/1.1 200 OK\nHeader: Value\r\r\nBODY",
+  "HTTP/1.1 200 OK\nHeader: Value\rHeader2: Value2\n\nBODY",
+  "HTTP/1.1 200 OK\nHeader: Value\n\rBODY",
+  "HTTP/1.1 200 OK\nHeader: Value\n\r"
+].forEach(input => {
+  promise_test(t => {
+    const message = encodeURIComponent(input);
+    return promise_rejects_js(t, TypeError, fetch(`resources/message.py?message=${message}`));
+  }, `Parsing response with a lone CR before message-body (${input})`);
+});