1 files changed, 10 insertions, 0 deletions
diff --git a/dom/base/test/bug1739957.sjs b/dom/base/test/bug1739957.sjs
new file mode 100644
index 0000000000..38f5e72040
--- /dev/null
+++ b/dom/base/test/bug1739957.sjs
@@ -0,0 +1,10 @@
+function handleRequest(request, response) {
+  if (request.queryString == "loaded") {
+    response.write(getState("loaded") || "false");
+    return;
+  }
+
+  setState("loaded", "true");
+  response.setHeader("Content-Type", "image/svg+xml", false);
+  response.write(`<svg xmlns="http://www.w3.org/2000/svg"></svg>`);
+}