1 files changed, 18 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/sharedworker-failure.js b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/sharedworker-failure.js
new file mode 100644
index 0000000000..8472318abd
--- /dev/null
+++ b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/resources/sharedworker-failure.js
@@ -0,0 +1,18 @@
+let state = "send-sw-failure"
+onconnect = initialE => {
+  let port = initialE.source;
+  port.postMessage(state)
+  port.onmessage = e => {
+    if(state === "" && e.data === "send-window-failure") {
+      port.postMessage(new SharedArrayBuffer())
+    } else {
+      port.postMessage("failure")
+    }
+  }
+  port.onmessageerror = e => {
+    if(state === "send-sw-failure") {
+      port.postMessage("send-sw-failure-success")
+      state = ""
+    }
+  }
+}