Update web-platform-tests to revision d7afcb8708eac08a614d161d5622a48172daf7e3

tests/wpt/web-platform-tests/fetch/stale-while-revalidate/resources/stale-script.py

@@ -0,0 +1,32 @@
+import random, string, datetime
+
+def id_token():
+   letters = string.ascii_lowercase
+   return ''.join(random.choice(letters) for i in range(20))
+
+def main(request, response):
+    token = request.GET.first("token", None)
+    is_query = request.GET.first("query", None) != None
+    with request.server.stash.lock:
+      value = request.server.stash.take(token)
+      count = 0
+      if value != None:
+        count = int(value)
+      if is_query:
+        if count < 2:
+          request.server.stash.put(token, count)
+      else:
+        count = count + 1
+        request.server.stash.put(token, count)
+
+    if is_query:
+      headers = [("Count", count)]
+      content = ""
+      return 200, headers, content
+    else:
+      unique_id = id_token()
+      headers = [("Content-Type", "text/javascript"),
+                 ("Cache-Control", "private, max-age=0, stale-while-revalidate=60"),
+                 ("Unique-Id", unique_id)]
+      content = "report('{}')".format(unique_id)
+      return 200, headers, content