1 files changed, 29 insertions, 0 deletions
diff --git a/testing/web-platform/tests/xhr/resources/conditional.py b/testing/web-platform/tests/xhr/resources/conditional.py
new file mode 100644
index 0000000000..2c248305e6
--- /dev/null
+++ b/testing/web-platform/tests/xhr/resources/conditional.py
@@ -0,0 +1,29 @@
+def main(request, response):
+    tag = request.GET.first(b"tag", None)
+    match = request.headers.get(b"If-None-Match", None)
+    date = request.GET.first(b"date", b"")
+    modified = request.headers.get(b"If-Modified-Since", None)
+    cors = request.GET.first(b"cors", None)
+
+    if request.method == u"OPTIONS":
+        response.headers.set(b"Access-Control-Allow-Origin", b"*")
+        response.headers.set(b"Access-Control-Allow-Headers", b"IF-NONE-MATCH")
+        return b""
+
+    if tag:
+        response.headers.set(b"ETag", b'"%s"' % tag)
+    elif date:
+        response.headers.set(b"Last-Modified", date)
+
+    if cors:
+        response.headers.set(b"Access-Control-Allow-Origin", b"*")
+
+    if ((match is not None and match == tag) or
+            (modified is not None and modified == date)):
+        response.status = (304, b"SUPERCOOL")
+        return b""
+    else:
+        if not cors:
+            response.headers.set(b"Access-Control-Allow-Origin", b"*")
+        response.headers.set(b"Content-Type", b"text/plain")
+        return b"MAYBE NOT"