1 files changed, 15 insertions, 0 deletions
diff --git a/browser/base/content/test/favicons/accept.sjs b/browser/base/content/test/favicons/accept.sjs
new file mode 100644
index 0000000000..3e798ba817
--- /dev/null
+++ b/browser/base/content/test/favicons/accept.sjs
@@ -0,0 +1,15 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function handleRequest(request, response) {
+  // Doesn't seem any way to get the value from prefs from here. :(
+  let expected = "image/avif,image/webp,*/*";
+  if (expected != request.getHeader("Accept")) {
+    response.setStatusLine(request.httpVersion, 404, "Not Found");
+    return;
+  }
+
+  response.setStatusLine(request.httpVersion, 302, "Moved Temporarily");
+  response.setHeader("Location", "moz.png");
+}