1 files changed, 36 insertions, 0 deletions
diff --git a/dom/html/test/sw_formSubmission.js b/dom/html/test/sw_formSubmission.js
new file mode 100644
index 0000000000..e7b4a7872c
--- /dev/null
+++ b/dom/html/test/sw_formSubmission.js
@@ -0,0 +1,36 @@
+/**
+ * We are used by test_formSubmission.html to immediately activate and start
+ * controlling its page.  We operate in 3 modes, conveyed via ?MODE appended to
+ * our URL.
+ *
+ * - "no-fetch": Don't register a fetch listener so that the optimized fetch
+ *   event bypass happens.
+ * - "reset-fetch": Do register a fetch listener, reset every interception.
+ * - "proxy-fetch": Do register a fetch listener, resolve every interception
+ *   with fetch(event.request).
+ */
+
+const mode = location.search.slice(1);
+
+// Fetch handling.
+if (mode !== "no-fetch") {
+  addEventListener("fetch", function (event) {
+    if (mode === "reset-fetch") {
+      // Don't invoke respondWith, resetting the interception.
+      return;
+    } else if (mode === "proxy-fetch") {
+      // Per the spec, there's an automatic waitUntil() on this too.
+      event.respondWith(fetch(event.request));
+      return;
+    }
+  });
+}
+
+// Go straight to activation, bypassing waiting.
+addEventListener("install", function (event) {
+  event.waitUntil(skipWaiting());
+});
+// Control the test document ASAP.
+addEventListener("activate", function (event) {
+  event.waitUntil(clients.claim());
+});