Update web-platform-tests to revision 3137d1d2d7757366a69f8a449b458b5057e0e81e

tests/wpt/web-platform-tests/resource-timing/resources/fake_responses.py

@@ -0,0 +1,19 @@
+# XMLHttpRequest/resources/conditional.py -- to fake a 304 response
+
+def main(request, response):
+    tag = request.GET.first("tag", None)
+    match = request.headers.get("If-None-Match", None)
+    date = request.GET.first("date", "")
+    modified = request.headers.get("If-Modified-Since", None)
+    if tag:
+        response.headers.set("ETag", '"%s"' % tag)
+    elif date:
+        response.headers.set("Last-Modified", date)
+
+    if ((match is not None and match == tag) or
+        (modified is not None and modified == date)):
+        response.status = (304, "SUPERCOOL")
+        return ""
+    else:
+        response.headers.set("Content-Type", "text/plain")
+        return "MAYBE NOT"