1 files changed, 27 insertions, 0 deletions
diff --git a/dom/serviceworkers/test/eventsource/eventsource_synthetic_response_intercept_worker.js b/dom/serviceworkers/test/eventsource/eventsource_synthetic_response_intercept_worker.js
new file mode 100644
index 0000000000..72780e2979
--- /dev/null
+++ b/dom/serviceworkers/test/eventsource/eventsource_synthetic_response_intercept_worker.js
@@ -0,0 +1,27 @@
+self.importScripts("eventsource_worker_helper.js");
+
+self.addEventListener("fetch", function (event) {
+  var request = event.request;
+  var url = new URL(request.url);
+
+  if (
+    url.pathname !==
+    "/tests/dom/serviceworkers/test/eventsource/eventsource.resource"
+  ) {
+    return;
+  }
+
+  ok(request.mode === "cors", "EventSource should make a CORS request");
+  var headerList = {
+    "Content-Type": "text/event-stream",
+    "Cache-Control": "no-cache, must-revalidate",
+  };
+  var headers = new Headers(headerList);
+  var init = {
+    headers,
+    mode: "cors",
+  };
+  var body = "data: data0\r\r";
+  var response = new Response(body, init);
+  event.respondWith(response);
+});