1 files changed, 25 insertions, 0 deletions
diff --git a/test/wpt/tests/service-workers/cache-storage/resources/vary.py b/test/wpt/tests/service-workers/cache-storage/resources/vary.py
new file mode 100644
index 0000000..7fde1b1
--- /dev/null
+++ b/test/wpt/tests/service-workers/cache-storage/resources/vary.py
@@ -0,0 +1,25 @@
+def main(request, response):
+  if b"clear-vary-value-override-cookie" in request.GET:
+    response.unset_cookie(b"vary-value-override")
+    return b"vary cookie cleared"
+
+  set_cookie_vary = request.GET.first(b"set-vary-value-override-cookie",
+                                      default=b"")
+  if set_cookie_vary:
+    response.set_cookie(b"vary-value-override", set_cookie_vary)
+    return b"vary cookie set"
+
+  # If there is a vary-value-override cookie set, then use its value
+  # for the VARY header no matter what the query string is set to.  This
+  # override is necessary to test the case when two URLs are identical
+  # (including query), but differ by VARY header.
+  cookie_vary = request.cookies.get(b"vary-value-override")
+  if cookie_vary:
+    response.headers.set(b"vary", str(cookie_vary))
+  else:
+    # If there is no cookie, then use the query string value, if present.
+    query_vary = request.GET.first(b"vary", default=b"")
+    if query_vary:
+      response.headers.set(b"vary", query_vary)
+
+  return b"vary response"