1 files changed, 4 insertions, 0 deletions
diff --git a/testing/web-platform/tests/signed-exchange/resources/sxg-subresource-script-inner.js b/testing/web-platform/tests/signed-exchange/resources/sxg-subresource-script-inner.js
new file mode 100644
index 0000000000..dcc7a356a0
--- /dev/null
+++ b/testing/web-platform/tests/signed-exchange/resources/sxg-subresource-script-inner.js
@@ -0,0 +1,4 @@
+// Usually the alternate resource should have the same content as the original
+// one (sxg-subresource-script.js), but for now we use differentiated content
+// for easy testing.
+window.parent.postMessage('from signed exchange', '*');