1 files changed, 15 insertions, 0 deletions
diff --git a/docshell/test/mochitest/form_submit_redirect.sjs b/docshell/test/mochitest/form_submit_redirect.sjs
new file mode 100644
index 0000000000..dbc32b9643
--- /dev/null
+++ b/docshell/test/mochitest/form_submit_redirect.sjs
@@ -0,0 +1,15 @@
+"use strict";
+
+Cu.importGlobalProperties(["URLSearchParams"]);
+
+async function handleRequest(request, response) {
+  if (request.method !== "POST") {
+    throw new Error("Expected a post request");
+  } else {
+    let params = new URLSearchParams(request.queryString);
+    let redirect = params.get("redirectTo");
+
+    response.setStatusLine(request.httpVersion, 302, "Moved Temporarily");
+    response.setHeader("Location", redirect);
+  }
+}