Enable caching for most of the download pages

uitwww/cache.py

@@ -68,7 +68,7 @@ def after_request(response):
 
     # Do dome filtering
     if status != 200 or method != "GET":
-        return result
+        return response
 
     if url.endswith("/"):
         url += "index.html"

uitwww/download.py

@@ -26,6 +26,7 @@ import itsdangerous
 import requests
 import pkg_resources
 
+from . import cache
 from . import launchpad
 
 
@@ -218,6 +219,7 @@ class Downloads:
         bp = flask.Blueprint("download", __name__)
 
         @bp.route("/")
+        @cache.enable
         def index():
             return flask.render_template(
                 "download/index.html",
@@ -225,6 +227,7 @@ class Downloads:
             )
 
         @bp.route("/<distro>")
+        @cache.enable
         def landing(distro):
             if distro not in self.config["distros"]:
                 flask.abort(404)