diff --git a/content-security-policy/wasm-unsafe-eval/script-src-spv-asynch.any.js b/content-security-policy/wasm-unsafe-eval/script-src-spv-asynch.any.js
new file mode 100644
index 000000000000000..360e00c7154ca38
--- /dev/null
+++ b/content-security-policy/wasm-unsafe-eval/script-src-spv-asynch.any.js
@@ -0,0 +1,18 @@
+// META: global=window,worker
+let code = new Uint8Array([0x53, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0]);
+async_test(t => {
+  self.addEventListener('securitypolicyviolation', t.step_func_done(e => {
+    assert_equals(e.violatedDirective, "script-src");
+    assert_equals(e.originalPolicy, "default-src 'self' 'unsafe-inline'")
+    assert_equals(e.blockedURI, "wasm-eval")
+  }));
+}, "Securitypolicyviolation event looks like it should");
+
+promise_test(t => {
+  return promise_rejects_js(
+      t, WebAssembly.CompileError,
+      WebAssembly.instantiate(code));
+});
+
+
+
diff --git a/content-security-policy/wasm-unsafe-eval/script-src-spv-asynch.any.js.headers b/content-security-policy/wasm-unsafe-eval/script-src-spv-asynch.any.js.headers
new file mode 100644
index 000000000000000..d3790b6fbe04971
--- /dev/null
+++ b/content-security-policy/wasm-unsafe-eval/script-src-spv-asynch.any.js.headers
@@ -0,0 +1 @@
+Content-Security-Policy: default-src 'self' 'unsafe-inline'
\ No newline at end of file